| 释义 |
see-saw/ˈsi:sɔ:/ n., v., adj. & adv.●n. 1a a device consisting of a long plank balanced on a central support for children to sit on at each end and move up and down by pushing the ground with their feet 跷跷板 b a game played on this 跷跷板游戏 2 an up-and-down or to-and-fro motion 一上一下的动作；往复的动作 3 a contest in which the advantage repeatedly changes from one side to the other (比赛中双方优势不相上下的)拉锯战 ●v. intr. 1 play on a see-saw 玩跷跷板 2 move up and down as on a see-saw (跷跷板似地)上下移动 3 vacillate in policy, emotion, etc. (政策、情感等)波动；摆动 ●adj. & adv. with up-and-down or backward-and-forward motion 上下波动(的)；来回摆动(的) see-saw motion 往复运动 □ go see-saw vacillate or alternate 波动；摆动 [reduplication of SAW1] |