🧩 词语组成解析
美国\\n[经] 美国
🗣️ 情景例句
There is an emergency. Please send a fire engine.
这有火灾,请尽快派消防车来。
Which one is more expensive?
哪一个是比较贵的?
He did a lot of research and travelled around the USA looking for information about his ancestors.
他做了大量的研究,在美国跑了许多地方,了解有关祖先的情况。