That is very useful for the load, which changes frequently and in a wide range.

这对于变化频繁且变化幅度大的负荷，很有实用价值。

youdao

I decided to make myself useful and do a load of the family laundry.

我决心做个有用的人，承担起家里洗衣服的重任。

youdao

I decided to make myself useful and do a load of the family laundry.

我决心做个有用的人，承担起家里洗衣服的重任。

youdao