1、cover up

動詞(用…)蓋在…上(以保護或隱藏)

He fell asleep in the front room so I covered him up with a duvet.

他在起居室睡著了，我便給他蓋上了羽絨被。

隱藏，遮掩(事實)

He suspects there's a conspiracy to cover up the crime.

他懷疑有人密謀掩蓋犯罪事實。

They knew they had done something terribly wrong and lied to cover it up.

他們知道自己犯了十分嚴重的錯誤，于是撒謊隱瞞。

2、pull out

（車或駕車者）駛離路邊，開向路中間

She pulled out into the street.

她開車來到大街上。

He was about to pull out to overtake the guy in front of him.

他正要駛離車流超前面那人的車。

退出，撤出（協議、比賽或組織）

The World Bank should pull out of the project.

世界銀行應從該項目中撤出。

France was going to pull out of NATO.

法國打算退出北約。

（使）撤退；（使）退出

The militia in Lebanon has agreed to pull out of Beirut.

黎巴嫩的民兵組織已經同意從貝魯特撤出。

Economic sanctions will be lifted once two-thirds of their forces have pulled out.

他們一旦撤出其2/3的軍隊，經濟制裁就會被取消。