sub·side /səbˈsaɪd/
 (vi.)沈澱,沈降,平息
 sub·side /səbˈsaɪd/ 不及物動詞
 下降,消退
 Sub·side v. i. [imp. & p. p. Subsided; p. pr. & vb. n. Subsiding.]
 1. To sink or fall to the bottom; to settle, as lees.
 2. To tend downward; to become lower; to descend; to sink. “Heaven's subsiding hill.”
 3. To fall into a state of quiet; to cease to rage; to be calmed; to settle down; to become tranquil; to abate; as, the sea subsides; the tumults of war will subside; the fever has subsided. “In cases of danger, pride and envy naturally subside.”
 Syn: -- See Abate.
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 subside
      v 1: wear off or die down; "The pain subsided" [syn: lessen]
      2: sink to a lower level or form a depression; "the valleys
         subside"
      3: sink down or precipitate; "the mud subsides when the waters
         become calm" [syn: settle]
      4: descend into or as if into some soft substance or place; "He
         sank into bed"; "She subsided into the chair" [syn: sink]