ar-

英 ['ɑː] 美 ['ɑː]

• [机] 阿, 啊

英英释义

名词 ar:

1. a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1%25 of the earth's atmosphere

2. a unit of surface area equal to 100 square meters

3. a state in south central United States; one of the Confederate states during the American Civil War

近反义词

【近义词】

• ad- 见于拉丁词源的字...