Picknometer
比重瓶
🗣️ 情景例句
May I bring you a salad?
要不要来点沙拉呢？
Could you tell me where the nearest telephone is?
你能告诉我最近的电话在哪儿吗？
I'm sorry to have done that. I didn't mean to be so rude.
我为那样做感到抱歉。我并不想那样粗鲁的。