Moral science
[法] 伦理学
🧩 词语组成解析
🗣️ 情景例句
No pain, no gain.
只有付出，才有收获！（不劳则无获！）
And go out into the open to watch all kinds of fireworks glittering everywhere in the dark sky.
到外面去看夜空中绚烂多彩的焰火。
Were you in San Francisco at the time of the big earthquake in 1989?
1989年旧金山大地震时，你在那儿吗？