Pfu
空斑形成单位; 疱斑形成单位
🗣️ 情景例句
The wedding cake really looks delicious.
婚礼蛋糕看起来真好吃。
When I was informed of the announcement of my nomination.
当获知我已被提名时。
Forty-two years later a tunnel was actually begun.
42年以后，隧道实际已经开始建了。