Unisist
n. 联合国政府间科技情报系统
🗣️ 情景例句
You must be joking.
你肯定是在看玩笑。
Yesterday it rained all day.
昨天整天下雨了。
It's often cold in December, January and February.It snows sometimes.
12月、1月和2月常常很冷，有时还下雪。