Teropterin
丁蝶翼素, 蝶呤氨苯甲酰三谷氨酸
🗣️ 情景例句
Thanks.
谢谢。
The room is always a mess after the children have been playing in here.
儿童玩过之后的房间，通常都是乱糟糟的。
How long have you lived here?
您在这里住了多长时间？