Hexabiscarbacholine
己氨胆碱
🗣️ 情景例句
What business are you in?
你从事哪一行？
I'd like to make an appointment with Professor Smith. Would 9:00 tomorrow be all right?
我想和史密斯教授约个会面时间。明天9点行吗？
She intended to dress up as a ghost and as she had made her costume the night before,
她打算装扮成鬼的模样。头天晚上她已把化装服做好，