Because I could not see any use in continuing.

因为我觉得继续下去毫无用处。

youdao

I would dive because the referee could not see me.

我可以假摔，因为裁判看不到我。

youdao

I could not see it, because I was unable to sit up.

我不能看体育场，因为我不能坐下来。

youdao

I could not see it, because I was unable to sit up.

我不能看体育场，因为我不能坐下来。

youdao