Knock against
（使）撞擊, 擊打; 偶然碰到; 磕碰
?? 詞語組成解析
knock
[nɑk]
n. 短促的敲打（聲）;爆震聲;敲擊聲;敲門（或窗等）聲;
vi. 猛烈敲擊;與某物相撞;撞到了桌子;
vt. （心）怦怦跳;把…撞擊成（某種狀態(tài)）;批評;
??? 情景例句
I'm dying for something to eat.
我極想吃點(diǎn)東西。
A barley-corn is better than a diamond to a cock.
對一只公雞來說，一顆麥粒優(yōu)于一顆鉆石。
if there is any effect of noise upon mental health it must be so small that present methods of psychiatric diagnosis cannot find it.
如果噪音對精神健康有影響的話，那也一定是微乎其微，以致現(xiàn)代的精神病診斷方法還發(fā)現(xiàn)不了。