他的宠物狗死了，他很伤心。

His pet dog is dead, and he is very sad.

看到朋友离开，他很伤心。

He was very sad to see his friend leave.

他们的批评使他很伤心。

Their criticisms have hurt him deeply.

经理拒绝支付他工资是他很伤心。

To pay his wage made him sad.

为此，他很伤心，不知如何是好。

So he was heart-broken didn't know what to do.

他很伤心。

He was heart-broken.

他很伤心，因为他有新朋友居然如此嗜血。

He was sad because his new friend was so bloodthirsty .

他要到乡下一些亲戚家去度假，可又不能带上他的宠物，为此他很伤心。

He was very saddened by the fact that he could not take his pet away with him on his holidays, which he was spending with some relatives in the country.

他的父亲过世了，这令他很伤心，球队想获得一场场胜利来送给他，这也是他们仅能做的，但是很可惜他们并没有获胜。

His father passed away and that is very sad. The team fought for him today and that is the best they could do.