Heptalenium
并庚间三烯离子
🗣️ 情景例句
I represent the Hassan Trading Company.
我是哈森贸易公司的代表。
Do you always fold the clothes after you bring them in off the line?
你把衣物从晒衣绳收下来时，会把它叠好吗？
It was mailed last week.
上个礼拜我们还没收到。