慢速英语:Scientists Find Many Animals, Like People, Are Getting Fatter

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have effect on对…有影响

例句：Violent films have great effect on preschool children.
      暴力电影对学龄前儿童的影响很大。

2.Bruce Lyon, a physical trainer, is in great physical shape. However, all his strength and energy seems to melt away when spring arrives.

melt away融化

例句：The snow soon melted away when the sun came out.
      太阳出来后不久, 雪就化了。

逐渐消失

例句：The morning fog usually melts away as the sun rises.
      晨雾通常在太阳升起时消失。

3.Then I'm so tired I didn't even feel like getting out and doing anything.

feel like想要…

例句：Do you feel like going to a movie?
      你想看电影吗?