这一周就做一些努力去改变其中一个吧。

This week make an effort to change one.

youdao

其中一些恒星仅需几年时间就能完成一周的运行。

Some take only a few years to complete their orbits.

youdao

最近数周，其中一些金属的价格升至创纪录的水平。

In recent weeks, some have reached record prices.

youdao

其中一颗三十天沿轨道运行一周，而另一颗所需时间恰好是它的运行周期的两倍。

One takes 30 days to complete an orbit, the other exactly twice as long.

youdao

其中一颗三十天沿轨道运行一周，而另一颗所需时间恰好是它的运行周期的两倍。

One takes 30 days to complete an orbit, the other exactly twice as long.

youdao