Old age can bring many problems.

人老麻烦多。

《牛津词典》

Cars bring great convenience to us, but they also cause many problems.

汽车带来了极大的便利，也同时引发了许多问题。

youdao

Cars bring great convenience to us, but they also cause many problems.

汽车带来了极大的便利，也同时引发了许多问题。

youdao