But wind power is uncertain, sometimes providing too much electricity and sometimes too little.

不过，风能的获取是不稳定的——有时风力提供的电力会过多，有时则会不足。

youdao

But wind power is uncertain, sometimes providing too much electricity and sometimes too little.

不过，风能的获取是不稳定的——有时风力提供的电力会过多，有时则会不足。

youdao