The milkmaid milks the cows twice a day.

挤奶女工一天两次为奶牛挤奶。

You cannot flay the same ox twice.

一头牛不能剥两次皮。

The fire brigade was called out twice last night.

消防队昨晚出勤两次。

The houseboy comes to mop our kitchen floor twice a week.

男仆每周两次到我家来拖洗厨房地板。

The housemaid comes to mop our kitchen floor twice a week.

女佣每周两次到我家来拖洗厨房地板。

I play tennis twice a week.

我一星期打两次网球。

M is twice as large as N.

M 等于N的两倍。

Remember the old adage—buy cheap, buy twice!

便宜无好货。

The proposal is annual and cerated maintain twice.

建议每年上蜡保养两次。

Albeit he has failed twice, he is not discouraged.

虽然失败了两次，但他并没有气馁。

This box is twice as large as that one.

这个盒子是那个盒子的两倍。

He was found to have lied twice in cross-examination.

他被发现在盘问中两度撒谎。

They had to fight with a force twice their number.

他们不得不同两倍于他们的敌人作战。

She swims twice a week and has been dabbling in weight training.

她一周游两次泳，偶尔还练习一下举重。

The new submarine is able to dive twice as fast as the older model.

这种新潜艇可以比旧型号快一倍。

I was absent once or twice.

我曾缺席一两次。

Refuse is collected twice a week.

垃圾每周收两次。

In the face of a severe crisis relating to international reserves, the government devalued the currency twice.

面对国际储备的严重危机，政府实施了两次货币贬值。

I had to send the email twice because I forgot to add the attachment. More haste, less speed!

我忘了加附件，只好再发一次邮件。真是欲速则不达！

Aldridge netted twice.

奥尔德里奇两次进球。