1.knock on 撞击；敲响

She got a nasty knock on the head when she fell.
她跌倒时头部受到严重碰撞。

Hearing the knock on the door, he sprang out of bed.
他听到了敲门声便突然从床上跳了出来。

2.thanks to 由于；多亏；幸亏

The delegation was carrying a message of thanks to President Mubarak.
代表团向穆巴拉克总统转达了谢意。

Thanks to that job I became an avid reader.
多亏了那份工作我才成了一个喜欢阅读的人。

3.fill with 充满；装满

I let my lungs fill with the scented air.
我呼吸着芬芳的空气.

You don't need green fingers to fill your home with lush leaves.
不是园艺大师也可以把自己的家里装点得绿意盎然。

4.point out 指出；指明；解释

I should point out that these estimates cover just the hospital expenditures.
我应该指出，这些估算仅包括医院的费用。

I wish to point out your misrepresentation of the facts.
我希望指出你的失实之处。