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
Yes. About four years ago.
是的 ，大约四年前走的。
It's a quarter past five.
现在是五点一刻。
is an unfortunate victim of adverse circumstances,
是逆境的牺牲品，