Why is he so often absent on Thursdays?

他为什么经常星期四缺席？

youdao

He's often absent-minded.

他常常心不在焉。

youdao

Newton thought about so many problems he was often absent-minded.

牛顿要思考许多复杂的问题，以致他常常心不在焉。

youdao

Newton thought about so many problems he was often absent-minded.

牛顿要思考许多复杂的问题，以致他常常心不在焉。

youdao