英和和英

throw one's head back

get up on the back of

to lower one's head―bow one's head―（謙遜してなら）―humble oneself

to bow one's head―humble oneself―cringe

go back over

to hang one's head low

to bow one's head―incline one's head

swing back

to lean back

refuse to back down

of a person's mind, to be favorably inclined towards something

to bob one's head―cringe

to incline one's head―put one's head on one side

bounce back

fall backwards and down

move back

to fall on one's back

to make a great effort of the mind in order to understand or find the answer to a difficult question

to push back

stand back

bend oneself over backward

pop back

to retreat backwards

walk back

to bend over backward

fall on one's behind

go back and forth

turning upside down

go to the rear

step back