xià shǒu
to start
to put one's hand to
to set about
the seat to the right of the main guest
xiān xià shǒu wéi qiáng
strike first and gain the upper hand (idiom, martial arts term); Making the first move is an advantage.
dǎ xià shǒu
to act in a supporting role
fig. to play second fiddle
lǎo shǔ lā guī , wú cóng xià shǒu
like mice trying to pull a turtle, nowhere to get a hand grip (idiom)
no clue where to start