4.an ounce of sth
(small amount)少量…;一点点…
If you had an ounce of common sense, you'd sort it out right now.你如果稍有常识的话, 就应该马上把它处理好。
If only my father had possessed an ounce of business sense.我父亲要是有一丁点儿商业头脑就好了。
There's not an ounce of truth in it.其中没有一点儿真实的成分。