pin down

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pin down

pin down
pin down

pin down
pin down
确定;使受约束;阻止
v.
1.define clearly
2.attach with or as if with a pin
pin down
1.使(某人)把话讲明白;使(某人)表明态度(或意图);迫使(某人)履行(某种诺言):
We shall have to pin him down to his promise.
我们将只好迫使他履行诺言.
2.用摁钉别住,按住:
The map is pinned down on the wall.
那张地图被钉在墙上.
3.使受约束;使固定不动:
The man was pinned down by a fallen tree.
那人被一棵倒下的树压住了.
4.确实证明(事实、情节等);清清楚楚或毫不含糊地说明;准确说明;解释明白[常用于否定句]:
I seem to recognize the quotation,but I cannot pin it down to its author.
这句引文我仿佛见过,但我不能确定它的作者是谁.