knock-on

n.[橄]用手(或臂)的向前击球(一种犯规动作)
adj.连锁反应的
knock-on英英释义
名词knockon
(rugby) knocking the ball forward while trying to catch it (a foul)
knock-on例句
用作名词(n.)
She was drumming with her fingers on the table.
她正用手指在桌子上笃笃地敲。
He drummed his fingers lightly on his desk diary.
他用手轻轻地敲打着他的办公日记。