手都发软，膝弱如水。

All hands shall be feeble, and all knees shall be weak as water.

youdao

二手烟会危害人体健康，特别是对抵抗力弱的小孩子。

Because secondhand smoke is very harmful, especially for children.

youdao

根据弱荷的手征性，合理地解释了宇称不守恒的原因。

According to the chirality of the weak charge the origin of parity nonconservation in the weak interactions is reasonably explained.

youdao