打螺丝
dǎluósī
do repetitive mechanical work
拿捏
nániē
to have someone under one’s thumb
立竿见影
lì gān jiàn yǐng
to get instant results
西药见效快
xīyàojiànxiàokuài
western medicine works faster
捡了芝麻丢了西瓜
jiǎnlezhīmadiūlexīgua
to gain something small at the expense of something much more valuable