Could you look after the house when I'm not at home?

Billy is not at home at present. He's at school.

比利现在不在家, 他在学校.

She pretended ( that ) she was not at home when we rang the bell.

我们按门铃时,她假装不在家.

If anyone calls tell them I'm not at home.

有人来电话,就说我不在家.

Harry telephoned by chance and found I was not at home.

哈里偶然打了电话,发现我不在家.

What bad luck! He's not at home.

真不凑巧! 他出去了.

Measure sediment temperature at intervals of 5 m by inserting the soil thermometer into the sediment.

沿样条每隔5米用土壤温度计量度土壤温度.

Seeds are planted at intervals of 3 inches.

种子每隔三英寸种一颗.

Put the chairs at intervals of three feet.

每隔3英尺摆一把椅子.

We a rest at intervals of two hours.

每隔两小时休息一次.

The young trees should be set out at intervals of six inches.

这些小树苗应该每隔6英寸栽一棵.

They recorded the temperature at intervals of 4 hours.

他们每隔4小时记录一次温度.

It is still a question at issue who will be responible for this matter.

谁该负责这件事还是个未解决的问题.

What is the question at issue?

为何该问题是重要的?

We escaped at dead of night, when the guards were asleep.

我们在夜静卫兵熟睡时逃跑了.

Jane blew out all the candles on her birthday cake at one go.

一只生日蛋糕将被厨师放到桌子上.

He blew out all the candles on his birthday cake at one go.

他一口气吹灭了生日蛋糕上所有的蜡烛.

Let's do this at one go , not scattergun!

咱们一起把这事解决了, 别零敲碎打了.

He learned how ski at one go.

他一下子就学会了滑雪.

I read the book at one go.

我一口气读完了这本书.

She blew out all the candles at one go.

她一口气就把蜡烛都吹灭了.