He has become a skilled worker.

他已经成为一名熟练的工人。

He is a quite skilled worker.

他是个相当熟练的工人。

He is quite a skilled worker.

他确实是个熟练的工人。

I judge him a skilled worker.

我断定他是个熟练工人。

He is a highly skilled worker.

他是位非常熟练的技工。