First, graduates lack experience.

首先，毕业生缺乏经验。

He is considered to lack experience.

人们认为他经验不足。

They consider me to lack experience.

他们认为我缺乏经验。

We still lack experience in the work of construction.

我们对建设工作还缺乏经验。

They still lack experience in international competitions.

他们还缺乏国际比赛的经验。