[chā jìn]
stick in; interject; thrust into; dip; let in; work in
stick a knife into the ground
把小刀插进地里
thrust one's hand into one's pocket
把手插进口袋里
His intejection of amusing stories into his speech made it more interesting.
他发言时插进了一些有趣的故事, 使他的发言更加妙趣横生。