1.attempt to 嘗試，企圖

Your letter is a feeble attempt to hide your intolerance.
你的這封信，是一種試圖掩蓋你狹隘心胸的蒼白舉動。

This was an attempt to close that chapter.
這也許是創造新開始的嘗試。

2.touch down 降落，著陸

External airbags have been used in the past to help unmanned space landers, including mars pathfinder, touch down.
外部氣囊在此之前已經被用來幫助無人駕駛的飛船進行著陸，這其中就包括了火星探路者飛船。

At low tide it is surrounded by a broad flat apron of coral where a plane could safely touch down.
退潮時，這個島四周是寬闊平坦的珊瑚礁，可以容納一架飛機安全地降落。

3.fly across 飛過

To fly across israel, it takes three minutes.
而飛越以色列，只需要三分鐘。

You can fly across the ocean in a matter of hours and be home the next day if you need to be.
你可以在數小時內便飛越海洋，若需要，隔天又可飛回家中。

4.a number of 許多的；一些

A number of foreign governments condemned the army coup.
一些外國政府譴責馬里發生的軍事政變。

He masterminded a number of terrorist attacks.
他謀劃了許多次恐怖襲擊行動。