zigzagging
  鋸齒形運動; 鋸齒形運動
  Zig·zag, v. t. [imp. & p. p. Zigzagged p. pr. & vb. n. Zigzagging.] To form with short turns.
  zigzag
       adj : having short sharp turns or angles
       n : an angular shape characterized by sharp turns in alternating
           directions [syn: zig, zag]
       adv : in a zigzag course or on a zigzag path; "birds flew zigzag
             across the blue sky"
       v : travel along a zigzag path; "The river zigzags through the
           countryside" [syn: crank]
       [also: zigzagging, zigzagged]