| 例句 |
noun the expansion and contraction of the metal金属的膨胀与收缩 The sudden contraction of the markets left them with a lot of unwanted stock. 股票市场骤然收缩，让他们剩下了许多无人要的股票。 Physical stress caused by expansion and contraction can damage components within the computer. The contractions started coming every five minutes. 子宫开始每隔五分钟收缩一次。 ‘He's’ may be a contraction of ‘he is’ or ‘he has’. he's 可以是 he is 或 he has 的缩写形式。 The contractions were coming every ten minutes. the contraction of the pipes in cold weather The design needs to allow for the expansion and contraction of the metal. |