Please come over to my residence at your convenience.

I should Welcome a personal interview at your convenience.

欢迎在您方便的时候给予面谈的机会.

When you come to school, please visit my office at your convenience.

你来学校时, 请就便到我办公室来一下.

May I come in to see you at your convenience?

在您方便的时候,能否与直接面谈.

Please send me an answer at your convenience.

请在方便时回信.

Please come at your convenience.

请在你方便的时候前来.

You can do it at your convenience.

你可以在方便的时候做.

They at wholesale and sell at retail.

他们大批地买进,再以零售方式卖出.

They buy at wholesale and sell at retail.

他们大批地买进,然后零售出去.

We are probably the only diamond ring manufacturer selling at wholesale prices.

我们大概是唯一钻石戒指制造商卖出的批发价格.

It would have been cheap at twice the price.

那将是非常便宜的.

Companies'Shanghai-A-shares are typically trading at twice the level of their Hong Kong H-shares.

这些企业在上海的A股价格通常是其香港H股价格的两倍.

Cheap at twice the price.

价格上涨一倍后仍然便宜.

Bills travel through the mail at twice the speed of checks.

邮寄的帐单的速度是支票的两倍.

The rabbIt'shot from its burrow and two dogs made after it at top speed.

兔子从洞里窜了出来,两只狗在后面拼命追赶.

The runner set off at top speed.

赛跑者以最大速度出发.

We built the plant at top speed and minimum cost.

我们以最低的投资,最高的速度建筑了该工场.

At the start the work seemed complex, difficult, heartbreakingly slow.

开始时这件工作似乎十分复杂困难, 而且慢得令人伤心.

The players were tense at the start of the game.

队员们在比赛开始时很紧张.

The runners lined up at the start.

赛跑选手们在起跑点排好队.

See how the man positions the rock at the slope of his shoulder.

看到那个人是如何把石头放在他肩膀的坡处了吗?