您好,那滴雨珠儿
1、中国是发展中国家之一.（developing country）
China is one of the developing countries in the world.
2、别忘了向你父母问好!（forget）
Don't forget to greet (或say hello to) your parents
3、这张长桌子是由木头做的.（be made of ）
The long desk is made of wood.
4、学生们正在上课突然一只鸟飞了进来.（when）
A bird suddenly flew in the classroom when the class was going on
5、会议将在20分钟后开始.（begin）
The meeting will begin in 20 minutes.
6、明天晚上我要到机场去送我姨妈.（see ...off）
I will go to the airport to see my aunt off tomorrow evening.