Sier
n. 青岛姒儿（中国青岛贸易有限公司名）
🗣️ 情景例句
It's dangerous to leave your children along while you go shopping.
购物时，把你的孩子单独留在家里是挺危险的。
I understand completely.
我完全明白。
Refuse politely any cold drink from an unknown source.
应谢绝任何不明来源的冷饮。