卻是

卻是

"卻是" means "but is" or "however, it is."

In this sentence, '卻是' is used to express an unexpected fact that contrasts with the appearance or initial assumption.

他看起来很年轻，卻是五十多岁了。

He looks very young, but he is actually over fifty years old.

Here, '卻是' indicates a contrasting reality against what seems apparent.

這个問題看似简单，卻是不容易解決的。

This problem appears simple, but it is actually not easy to solve.

In this sentence, '卻是' is used to state an action or fact that contrasts with the preceding context or expectation.

雖然他很累，卻是依然选择完成工作。

Even though he is very tired, he still chose to finish the work.