pin down确定;使受约束;阻止 define attach with or as if with a pinpin 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 我们将只好迫使他履行诺言。 用摁钉别住,按住:The map is pinned down on the 那张地图被钉在墙上。 使受约束;使固定不动:The man was pinned down by a fallen 那人被一棵倒下的树压住了。 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 这句引文我仿佛见过,但我不能确定它的作者是谁。