Subparticle
亚微粒子, 微细颗粒
🗣️ 情景例句
Good-bye.
再见。
A fox may grow grey, but never good.
狐狸会变，但本性难移。
The American president who fought for the freedom of slaves in the USA.
为美国奴隶的自由而战的美国总统。