🗣️ 情景例句
Thank you, sir.
多谢，先生。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码，这些瓶子可免费保存两个月。
Hello, Zhou Lan. Can I ask you for some advice?
你好，周兰。我想征求一下你的建议，可以吗？