It's impossible for them to do their work one-to-one without the help of volunteers.

对于他们来说没有志愿者的帮助，做一对一的工作几乎不可能。

youdao

It's impossible for them to do their work one-to-one without the help of volunteers.

对于他们来说没有志愿者的帮助，做一对一的工作几乎不可能。

youdao