所以在我们的日常交际当中，我们需要注意语言的习惯使用，我们不仅要把英语学好，还要会把它使用在正确的场合。

So in our daily communication, we'd better pay much more attention to the habit usage of language, in the hope that we can not only learn English well but also use it in the correct situation.

youdao

在某些场合，需要使用多种电压的负载时，也要用到DC - DC逆变器，如将24vdc的电能转换成5vdc的电能(注意，不是简单的降压)。

In some cases, the need to use a variety of load voltage, but also used for DC-DC inverter, 24vdc power if converted to 5vdc power (note, not a simple step-down).

youdao

贬义词的使用要注意场合。

This word is often used in a derogatory sense.

youdao