at

prep. （表示位置）在，在（某時(shí)間或時(shí)刻），以，達(dá)，向，朝；n. 阿特（老撾輔幣單位，100 阿特 = 1 基普）；

lower

adj. 下方的，在底部的，較低級(jí)的；v. 降低，減少，縮小；

concentrations

n. 集中( concentration的名詞復(fù)數(shù) )，專心，關(guān)注，濃度；

they

pron. 他/她/它們，人們，大家，政府，當(dāng)局，她們；

May

aux. 可以，也許，會(huì)，但愿；n. [May]五月，山楂屬植物，（五朔節(jié)裝飾用的）綠枝花枝，（春天開(kāi)花的）繡線菊屬植物；

even

adv. 甚至，更加，即使，恰巧在…時(shí)候；adj. 公平的，平坦的，偶數(shù)的，平均的；vt. 使平坦，使相等；vi. 變平，成為相等；

be

v. 是，有，存在，做，成為，發(fā)生；aux. 用來(lái)表示某人或某物即主語(yǔ)本身，用來(lái)表示某人或某物屬于某一群體或有某種性質(zhì)；

stimulants

n. 興奮劑( stimulant的名詞復(fù)數(shù) )，含興奮劑的飲料，刺激物，激勵(lì)物；

of

prep. 關(guān)于，屬于…的，由…制成；aux. 助動(dòng)詞 [非標(biāo)準(zhǔn)用語(yǔ)、方言] =have [主用于虛擬語(yǔ)氣]；

cell

n. <生>細(xì)胞，小牢房，電池，<詩(shī)>墓穴；vi. 住在牢房或小室中；vt. 囚禁；

division

n. 分開(kāi)，分隔，[數(shù)]除法，部門(mén)，[軍]師；

...the spiralling vortex airflow that slows the plane.
使飛機(jī)減速的螺旋形氣流渦旋

You just go on ahead. I'll come by later...
你只管先往前走。我隨后就來(lái)。

He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打兒子的,是恨惡他;疼愛(ài)兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請(qǐng)致電414 3925,轉(zhuǎn)分機(jī)2253。

He sat there while I made the case for his dismissal...
他坐在那兒，聽(tīng)我陳述解雇他的理由。

Baroness Thatcher's claims seem credible to many.
撒切爾女男爵的主張?jiān)诤芏嗳丝磥?lái)是可信的。

Nothing to be got without pains but poverty.
一份耕耘，一份收獲。

This decree obliges unions to delay strikes.
該法令迫使工會(huì)推遲罷工。

The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索權(quán)當(dāng)有支付義務(wù)的第一方不能支付時(shí)，可以向商業(yè)票據(jù)的背書(shū)人要求支付的權(quán)力。

The Semitic peoples followed close upon these pioneers.
緊跟在這些先行者之后的是閃米特人.

He stowed his passport away safely in a drawer.
他把護(hù)照妥善保存在抽屆里.

Overseas the legal issues are more muddied.
在海外，法律問(wèn)題更為繁復(fù)。

If you are not planning on breastfeeding, you have to decide on a formula.
如果你不打算喂母奶, 那么你得決定選一種嬰兒奶粉(水).

For example , Sir Issac Newton believed in a static universe with an even distribution of stars.
牛頓認(rèn)為宇宙是靜態(tài)的, 天體平均分布在宇宙中.

Cheney was in Madrid.
切尼當(dāng)時(shí)在馬德里。

Zanzibar became independent, after being a British Protectorate since 1890.
自1890年以來(lái)一直是英國(guó)保護(hù)國(guó)的桑給巴爾獨(dú)立.

In view of the fact that Hobson was not a trained economist his achievements were remarkable.
考慮到霍布森不是科班出身的經(jīng)濟(jì)學(xué)家，他可謂是成就非凡。

Do you think Mr. Hobson can see me next Friday?
你看霍布森先生下星期五能見(jiàn)我嗎 ?

The people are looking forward to being delivered from the nasties.
人民期待著從不愉快的狀況中解脫出來(lái).

University freshmen get lots of razzing, but they like the initiation.
大一新生受各種嘲弄, 但是他們對(duì)這種入門(mén)經(jīng)驗(yàn)甘之如飴.

That's one reason Cheney's stature isn't threatening to the new President.
這是切尼的地位不會(huì)威脅到新總統(tǒng)的原因之一.

The cars then weaved in and out of traffic at top speed.
這些轎車就在車流中全速穿行。

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At lower concentrations they may even be stimulants of cell division.是什么意思？

At lower concentrations they may even be stimulants of cell division.

在濃度較低時(shí),它們甚至能促進(jìn)細(xì)胞分裂.

at