be exact的用法和樣例：
例句
- It's a4-cylinder engine, or to be exact, a4-cylinder, internal-combustion engine.
那是四汽缸引擎，精確地說(shuō)，是四汽缸內燃機。 - It happened late last century in 1895, to be exact.
事情發(fā)生在上個(gè)世紀末--準確地說(shuō)，在1895年。 - He's in his mid-fifties; well, fifty-six to be exact (ie more accurately).
他五十多歲; 嗯，確切地說(shuō)是五十六歲。
