national day is coming， and we can have a s*n-day holiday. my family are going to hainan. it's a good seaside city. we are staying there for a week. we are going to the？beach？and going swimming in the sea. we're？visiting？tianya haijiao， wanquan river and many otherbeautiful？places. i t[复习必备 | 海量免费学习*资源尽在“学而思轻课app”