summer holiday前面加什么

1.I want to go hiking in China over the summer holiday.我想暑假去中国远足。

2.Harry: Shall we learn to do housework together during this summer holiday?哈里：暑假我们一起学做家务好吗?

3.Keen skiers are happy to forego a summer holiday to go skiing.滑雪爱好者乐于利用暑期假日去滑雪。