美[k?n?tr?k??n] 1 . The contraction of muscles uses energy and releases heat.
肌肉的收縮消耗能量并且釋放熱量。
來自柯林斯例句
2 . the expansion and contraction of the metal
金屬的膨脹與收縮
來自《權威詞典》
3 . Contraction of the timbers left gaps in the fence.
木料收縮,結果圍墻露出縫來.
來自《簡明英漢詞典》
4 . The forces of expansion are balanced by forces of contraction .
擴張力和收縮力相互平衡.
來自《簡明英漢詞典》
5 . "It's" (with an apostrophe) should be used only as a contraction for "it is".
it's（帶撇號）只能用作itis的縮約形式。
來自柯林斯例句
1.(physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
2.the process or result of becoming smaller or pressed together;
the contraction of a gas on cooling
3.a word formed from two or more words by omitting or combining some sounds;
`won't' is a contraction of `will not'
4.the act of decreasing (something) in size or volume or quantity or scope
