🧩 词语组成解析
Yellowstone
[['jeləustəun]]
n. 黄石河
river
['rivə]
n. 河，江;溪，巨流;
🗣️ 情景例句
Hi.
嗨。
Went on to get his master's degree from harvard.
然后在哈佛大学取得了学士学位。
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。