pin down

To fix or establish clearly

控制?。呵宄毓潭ɑ蚪?/p>

was finally able to pin down the cause of the disease.

最后終于確定病因

To force (someone) to give firm opinions or precise information

強(qiáng)求承諾：強(qiáng)迫某人提供確定意見或正確信息

The reporter pinned the governor down on the issue of capital punishment.

記者強(qiáng)求州長(zhǎng)在死刑問題上發(fā)表確切看法

pin on

To attribute (a wrongdoing or crime)

歸罪：將錯(cuò)事或罪行歸于…

The murder was pinned on the wrong defendant.

被告被錯(cuò)誤地定了謀殺之罪

(as) clean (或 neat) as a new pin

extremely clean or neat

非常整潔

for two pins I'd (或 she'd，等) ——

used to indicate that one is very tempted to do something, especially out of annoyance

巴不得，恨不得

hear a pin drop

used to describe absolute silence or stillness

靜得連針掉在地上也聽得見

on pins and needles

in an agitated state of suspense

如坐針氈；焦躁不安；急得要命

pin one's colours to the mast

pin one's ears back

listen carefully

全神貫注地聽

pin one's hopes (或 faith) on

rely heavily on

寄厚望于；把希望寄托在…上

ministers were pinning their hopes on a big-spending Christmas.

部長(zhǎng)們把希望寄托在大肆消費(fèi)的圣誕節(jié)上。

pin someone down

restrict the actions or movement of an enemy by firing at them

火力壓制

pin something down

define something precisely

確定， 落實(shí)