contraction

contraction

英 [kən'trækʃ(ə)n]
　　美 [kən'trækʃən]

n. 收縮，緊縮；縮寫式；害病

中文詞源：

contraction 收縮

來自contract, 收縮。

例句：

1. The contraction of muscles uses energy and releases heat.
肌肉的收縮消耗能量並且釋放熱量。

2. the expansion and contraction of the metal
金屬的膨脹與收縮

3. Contraction of the timbers left gaps in the fence.
木料收縮,結果圍墻露出縫來.

4. The forces of expansion are balanced by forces of contraction.
擴張力和收縮力相互平衡.

5. "It's" (with an apostrophe) should be used only as a contraction for "it is".
it's（帶撇號）隻能用作itis的縮約形式。