例句與用法

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1. He flexed his long stringy muscles manfully .
   他孔武有力地彎起膀子，顯露出細長條的肌肉。
2. We wound off a couple of yards of wire for a new lamp flex .
   我們解開幾碼電線作為新的電燈花線。
3. During joe's life time he will extend and flex finger joints at least 25 million times .
   在喬的一生中，他要伸、屈指關節(jié)至少2，500萬次。
4. Now and then the room blurred and a slight giddiness came over him; but his muscles would flex taut and it would pass .
   房間不時變得模糊不清，他不時感到微微有點頭暈；但他身上肌肉繃緊起來，那陣頭暈也就過去了。
5. Ladies , our thumbs are down , our wrists are flexed ,
   女士們,拇指向下,手腕下彎,