Flex stiffness
[化] 耐屈挠疲劳
🧩 词语组成解析
flex
[fleks]
v. 弯曲（关节）;收缩（肌肉）;显示力量;
n. 弯曲;[电]花线;
🗣️ 情景例句
They came and solved the problem.
他们来了并解决了问题。
Not only did I forget my train ticket, but I also forgot my passport.
我不仅忘了带火车票，还忘了带护照。
Tomorrow he will be watching her anxiously as she swims the long distance to England.
明天他将焦急地注视着女儿游过这段漫长的距离到达英国。