Ulmain
凝胶化植物质煤
🗣️ 情景例句
Keep a small English dictionary with you at all time.
随身携带一本小英文字典。
How long will you remain in the hospital?
你将会在医院逗留多久？
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。