kneel down

跪下

kn, knack, knacker, knacker's yard, knackered, knapsack, knave, knavery, knavish, knavishly, knead, knee, knee-breeches, knee-deep, knee-high, knee-jerk, knee-length, kneecap, kneecapping, kneel, knees-up, knell, knew, knick-knack (also nick-nack), knickerbockers, knickers, knife, knife-edge, knight, knight errant (pl knights errant), knighthood, knightly, knit, knitter, knitting, knitting-machine, knitting-needle, knitwear, knob, knobbly,