雙語例句：

今年的西瓜市場看好。

　　The prospects of this year's watermelon market are good.

　　都快冬天了，西瓜早就下市了。

　　It is almost winter and watermelons have long gone out of season.

　　你可以把剩下的西瓜帶回宿舍。

　　You can bring the rest of this watermelon to your dormitory.

　　這種西瓜個頭兒大。

　　This kind of watermelon is remarkable for its size.

　　現在是伏天，西瓜正當令。

　　These are the dog days; watermelons are just in season.