弱作用

weak interaction (physics)

to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore

worker / workshop / (slang) troublesome / high-maintenance (person)

to do; to engage in / to write; to compose / to pretend; to feign / to regard as; to consider to be / to be; to act the part of / to feel (itchy, nauseous etc) / writings; works

to act on / to affect / action / function / activity / impact / result / effect / purpose / intent / (suffix) -ation, -tion etc, as in 抑制作用[yi4 zhi4 zuo4 yong4], inhibition

weak / feeble / young / inferior / (following a decimal or fraction) slightly less than

weak; feeble / young / inferior; not as good as / (following a decimal or fraction) slightly less than

the weak force (in particle physics)