Though we have failed many times in developing the new medicine for cancer, we don't lose heart and carry on with it.

管对于发明一种新的抗癌药品我们已经失败很多次，但是我们不能失去继续探索的得信心。

youdao

Though we have failed many times in developing the new medicine for cancer, we don't lose heart and carry on with it.

管对于发明一种新的抗癌药品我们已经失败很多次，但是我们不能失去继续探索的得信心。

youdao