1.
Having half-baked knowledge is worse than knowing nothing at all.
一知半解，不如不知不解。
2.
He has a smattering of knowledge about physics.
他对物理一知半解。
3.
A little knowledge is a dangerous thing.
一知半解是很危险的事。
4.
Why, l guess you don't know everything about women yet?
你对女人还一知半解
5.
The saying, @A little learning is a dangerous thing,
“一知半解是危险的。”
6.
A little learning [knowledge] is a dangerous thing.
[谚]一知半解是危险的。
7.
She dabbles in astronomy.
她对天文学一知半解。
8.
My knowledge of German is patchy, ie not complete.
我对德语一知半解.
9.
I have only a sketchy knowledge of geography.
我对地理只是一知半解.
10.
It is better to know one thing than to know about ten thousand things.
深入了解一件事情强于对一万件事情一知半解。
11.
One may as well not know a thing at all as know it perfectly.
与其一知半解，还不如一点也不知道的好。
12.
Better know nothing than half-know many things!
一无所知，比对许多东西都一知半解为好！
13.
His knowledge of the subject is no more than fragmentary.
他对这门学科只是一知半解。
14.
A little knowledge does seem to be a dangerous thing.
看来一知半解确实是件危险的事。
15.
He had only an imperfect understanding of his task.
他对自己的任务只是一知半解。
16.
He seemed to have only a shallow understanding of his subject.
看来他对他修的科目只是一知半解。
17.
My...! Why, you stuck up,...half-witted,...scruffy-looking... nerf-herder!
我的天呀...为何你自大...一知半解...邋遢...
18.
It is dangerous that you have a smattering of superficial knowledge on a subject.
对于任何问题一知半解的知识都是危险的。