I-I know what I'm supposed to do,我知道該怎么做

be supposed to猜想會； 應(yīng)該

The ghost of Lady Margaret is supposed to haunt this chapel.

據(jù)說瑪格麗特女士的鬼魂常在這個禮拜堂出沒。

The details were supposed to be secret but somehow leaked out.

這些細(xì)節(jié)原屬秘密，可是不知怎么給泄露出去了。

and if I don't hear from you by tomorrow,如果明天還沒有收到你的回復(fù)

hear from接到 ... 的信

When they did not hear from her, they feared the worst.

他們那時聽不到她的消息，唯恐發(fā)生了最糟的事。

I hear from my cousin every two months.

我每兩個月就會收到我表哥的來信。

This woman has the power to destroy everything you can mean to do.這女人有能力毀掉你所有企圖

mean to打算

I didn't mean to take a taxi but I had to, as I was late.

我雖然不想坐計(jì)程車，但因?yàn)樘t了所以非坐不可。