下定論; 找到或辨認(rèn)出 explain the exact nature of (sth); find or recognize (sb/sth)
pin sb/sth ? down
We should use our secondary forces to pin down several enemy columns.
我們應(yīng)該用助攻部隊來牽制住敵人的幾個縱隊。
The man was pinned down by a fallen beam.
那人被一根倒下的梁木壓住了。
We were pinned down by the enemy fire.
我們被敵人的炮火壓住了。
The soldier was pinned down in the hole because rifle bullets were flying over his head.
那個士兵被困在洞里,子彈正在他頭頂亂飛。
pin sb ? down
Jackson says he will call a meeting, but we cannot pin him down about a date.
杰克遜說他要召開一個會議,但我們不能使他說出準(zhǔn)確的日期。
I won\\\'t pin you down to a particular day; just come whenever you\\\'re free.
我不想讓你定下確切的日子,你什么時候有空就過來。
If I can find the letter in which he promised to make a contribution,I\\\'ll pin him down to it.
如果我能找到他答應(yīng)捐款的那封信,我一定要他履行諾言。
pin sb/sth ? down
I can\\\'t pin her down, but I\\\'ve seen her before.
我說不清她是誰,但我曾經(jīng)見過她。
I seem to recognize the quotation, but I can\\\'t pin it down to its author.
引用的這段話我似乎見過,但記不清作者是誰了。
The police tried to pin down the blame for the fire in the school.
警方設(shè)法弄清學(xué)校失火的責(zé)任。
It is difficult to pin down the exact meaning of this word.
很難確定這個詞的確切含義。
There is a tune going around my head, but I can\\\'t pin it down.
我頭腦中回蕩著一支樂曲旋律,然而我卻說不出它出自哪首曲子。
There was a lot of noise coming from the classroom.but I couldn\\\'t pin it down to any particular group of students.
教室里傳來一片哄鬧聲,但我很難辨出是哪些學(xué)生發(fā)出的。
At last we were able to pin the trouble down to a fault in the machine.
最后,我們終于找到了癥結(jié)所在,是機器里面出了毛病。