Methylacetic acid
[建] 丙酸
🧩 词语组成解析
🗣️ 情景例句
Hello, Air China Flight Reservations. May I help you?
喂，你好，中国航空公司订票处，需要帮忙吗？
Try to be there by 8:15 the airport will be crowded.
尽量在8点15分以前赶到那里，到时机场会很拥挤的。
After having been instructed to drive out of town, I began to acquire confidence.
在接到把车开出城的指令后，我开始有了信心。