美国人常用的1500个单词(18)

ash

[the part left after something burns]

Only ashes were left when the fire passed.

ask

[(1) to question; (2) to say something is wanted] We ask the teacher questions every day. (1)

The candidate asked the people for their votes. (2)

assist

[to help]

The doctor asked the medical student to assist him.

astronaut

[a person who travels in space]

Astronaut Neil Armstrong was the first man to walk on the moon.

astronomy

[the scientific study of stars and the universe] I study astronomy because I like to look at stars.

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