leave of absence：請假

I beg to apply for two weeks' leave of absence. 我請求準假兩周。

He ask for leave of absence to visit his mother in hospital.他請假去探望住院的母親。

Peter obtained a leave of absence from the university. 彼得從大學得到休假。

cast off：拋棄，丟棄

She' s cast off three boy-friends in a month. 她一個月里就甩了叁個男朋友。

The criminal was determined to cast off his old self and turn over a new leaf. 這個罪犯決心脫胎換骨，重新做人。

rush off ：倉促離開

I have to rush off to class now. Bye. 現在我得趕去上課了。再見。

Oh, I'm sorry to have to rush off like this, but I'll see you again soon, anyway.哦,十分抱歉,我就這樣匆忙走掉了,但是,無論如何我會很快地來看你的。

up to：勝任的

I'm not quite up to it 我大懂這個。

dying wish：遺愿

return to：返回

say goodbye：道別