Siriometer
兆(天文单位)
🗣️ 情景例句
I'm doing it for you.
也是为你做的。
The voice of one man is the voice of no one.
一个人的声音是没有力量的。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，