just to make sure everything was working ok.是为了检测仪器是否正常运作

make sure:弄明白； 设法确保

I'm going to make sure if I'm going to Macao.

我要拿定主意我是否去澳门。

I'll make sure of the time of the flight.

我要核实一下这班飞机的时间。

it spread out over more of the day,每天的波动分布更为频繁

spread out:传播开

The news of shipwreck soon spread out widely.

船只失事的消息很快就广泛地传开了。

The search party spread out over the moor.

搜索队在荒草地分散行动。

I'll be honest with you, no.坦白说,没有

be honest with:对 ... 说老实话

Above all, you should be honest with me right now.

最重要的是,你现在必须对我实话实说。

To be honest with you, I don't remember what he said.

跟你说实话，我不记得他说过什么了。