at home
 在家裡;在國內
 At prep.  Primarily, this word expresses the relations of presence, nearness in place or time, or direction toward; as, at the ninth hour; at the house; to aim at a mark. It is less definite than in or on; at the house may be in or near the house. From this original import are derived all the various uses of at.  It expresses: -
 1. A relation of proximity to, or of presence in or on, something; as, at the door; at your shop; at home; at school; at hand; at sea and on land.
 2. The relation of some state or condition; as, at war; at peace; at ease; at your service; at fault; at liberty; at risk; at disadvantage.
 3. The relation of some employment or action; occupied with; as, at engraving; at husbandry; at play; at work; at meat (eating); except at puns.
 4. The relation of a point or position in a series, or of degree, rate, or value; as, with the thermometer at 80°; goods sold at a cheap price; a country estimated at 10,000 square miles; life is short at the longest.
 5. The relations of time, age, or order; as, at ten o'clock; at twenty-one; at once; at first.
 6. The relations of source, occasion, reason, consequence, or effect; as, at the sight; at this news; merry at anything; at this declaration; at his command; to demand, require, receive, deserve, endure at your hands.
 7. Relation of direction toward an object or end; as, look at it; to point at one; to aim at a mark; to throw, strike, shoot, wink, mock, laugh at any one.
 At all, At home, At large, At last, At length, At once, etc. See under All, Home, Large, Last (phrase and syn.), Length, Once, etc.
 At it, busily or actively engaged.
 At least. See Least and However.
 At one. See At one, in the Vocabulary.
 Syn: -- In, At.
 Usage: When reference to the interior of any place is made prominent in is used. It is used before the names of countries and cities (esp. large cities); as, we live in America, in New York, in the South. At is commonly employed before names of houses, institutions, villages, and small places; as, Milton was educated at Christ's College; money taken in at the Customhouse; I saw him at the jeweler's; we live at Beachville. At may be used before the name of a city when it is regarded as a mere point of locality. “An English king was crowned at Paris.” --Macaulay. “Jean Jacques Rousseau was born at Geneva, June, 28, 1712.” --J. Morley. In regard to time, we say at the hour, on the day, in the year; as, at 9 o'clock, on the morning of July 5th, in the year 1775.
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 Home n.
 1. One's own dwelling place; the house in which one lives; esp., the house in which one lives with his family; the habitual abode of one's family; also, one's birthplace.
    The disciples went away again to their own home.   --John xx. 10.
    Home is the sacred refuge of our life.   --Dryden.
 Home! home! sweet, sweet home!
 There's no place like home.   --Payne.
 2. One's native land; the place or country in which one dwells; the place where one's ancestors dwell or dwelt. “Our old home [England].”
 3. The abiding place of the affections, especially of the domestic affections.
 He entered in his house -- his home no more,
 For without hearts there is no home.   --Byron.
 4. The locality where a thing is usually found, or was first found, or where it is naturally abundant; habitat; seat; as, the home of the pine.
    Her eyes are homes of silent prayer.   --Tennyson.
    Flandria, by plenty made the home of war.   --Prior.
 5. A place of refuge and rest; an asylum; as, a home for outcasts; a home for the blind; hence, esp., the grave; the final rest; also, the native and eternal dwelling place of the soul.
    Man goeth to his long home, and the mourners go about the streets.   --Eccl. xii. 5.
 6. Baseball The home base; as, he started for home.
 At home.(a) At one's own house, or lodgings. (b) In one's own town or country; as, peace abroad and at home. (c) Prepared to receive callers.
 Home department, the department of executive administration, by which the internal affairs of a country are managed. [Eng.] To be at home on any subject, to be conversant or familiar with it.
 To feel at home, to be at one's ease.
 To make one's self at home, to conduct one's self with as much freedom as if at home.
 Syn: -- Tenement; house; dwelling; abode; domicile.
 at home
      n : a reception held in your own home
      adv : on the home team's field; "they played at home last night"