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
I remember when I was pregnant with Richard.
我记得当我怀着Richard时，
I would have gone on the picnic if it hadn't rained.
如果没下雨，我就去野餐了。
So how did you get into the castle?
那么，你是怎么混入城堡的呢？