之前 before; prior to; ago 五年之前 five years ago; 在她動(dòng)身之前 prior to her departure; 開(kāi)會(huì)之前 before the meeting; 臨走之前 prior to departure; before departure; 兩周之前 two weeks ago
He recalled the occurrences before he fell asleep . 他想起了入睡之前的種種經(jīng)過(guò)。
More important are tablets of above 1400 b.c . 公元前1400年之前的石碑具有更重要的意義。
It may also refer to the item before the one being discussed . 它也可指正在談及的事物之前的一個(gè)。
Careful reconnaissance is essential before observations begin . 觀測(cè)開(kāi)始之前的一項(xiàng)主要工作是認(rèn)真選點(diǎn)。
That was before i took a course in public speaking at the dale carnegie institute . 那是我在戴爾卡內(nèi)基學(xué)院選修演說(shuō)術(shù)之前的事。
Senescence may be defined as the deteriorative events which precede the death of a mature cell . 衰老是成熟細(xì)胞死亡之前的敗壞過(guò)程。
I stood for a long while watching the white dome against a flashing blue sky, with a very religious feeling . 我懷著一種極為虔敬的心情,久久地凝望這個(gè)映照在光輝的藍(lán)天之前的白色圓頂。
Because the larger the event, the larger the number of oscillations of the transducer before they decay below the trigger level . 因?yàn)槭录酱?,傳感器在它衰減到低于觸發(fā)器電平之前的振蕩次數(shù)越多。
The sound changed, not into the silence which had preceded the arrival of these stunning news, but into stifled mutterings . 群眾的聲音變了,不是回到這駭人聽(tīng)聞的消息下達(dá)之前的沉默,而是變成悶聲悶氣的低語(yǔ)。
At the period just preceding the advent of bartleby, i had two persons as copyists in my employment, and a promising lad as an office-boy . 就在巴特比光臨之前的一段時(shí)間里,我已經(jīng)雇用了兩個(gè)人任抄寫(xiě)員,一個(gè)有出息的孩子當(dāng)聽(tīng)差。