động từ.
To let go, to let loose, let off; set free, release; loosen
having let down his bowl and chopsticks, he stood up
he let loose the bridle for his horse to go up the slope; he gave his horse the bridle for him to go up the slope
let out a sigh
To let down, to drop
with hair let straight down on back
the mantle of darkness was let down on the field
to let oneself down into a chair
to drop one's line, to cast one's line
to drop words of a libertine, to flirt
the clock dropped a few notes, the clock struck a few notes
to drop casually a few sentences
To lower
lower the mosquito netting
darkness fell
a big fish requires a long line