重点讲解：
1. come up 走近；走到跟前；
例句：Her catcame upand rubbed itself against their legs.
她的猫跑上前来，在他们腿上蹭来蹭去。
2. convince sb. to do sth. 说服；劝服；
例句：I've been trying toconvincehimtocome with me.
我一直在说服他与我一起过来。
3. be allowed to do sth. 允许；容许；准许；
例句：The animalsare allowed towander at will in the park.
这些动物可以在公园里随意走动。
4. get tired of 厌烦的；厌倦的；
例句：You neverget tired ofhearing this story.
这个故事百听不厌。