Some people are worried that electromagnetic fields from electric power lines could increase the risk of cancer.

　　一些人擔(dān)心電源線的電磁場可能增加患癌癥的風(fēng)險(xiǎn)。

　　The house is backed by fields.

　　房子的后面是田野。

　　There's a way across the fields.

　　有一條路穿過田地。

　　Lunch was a snack in the fields.

　　午飯是在野外吃的快餐。

　　Lambs frisked in the fields.

　　羊羔在田野里活蹦亂跳。