心涛：洋洋，你在干什么？    洋洋：我在遛狗。    心涛：你每天都陪你的小狗散步吗？    洋洋：不，平时都是我妈妈遛狗。我今天第一次遛狗。 XT: YY, What are you doing?
YY: I am walking my dog.
XT: DO you walk it every day?
YY: No, usually my mom walks it. I am walking it for the first time today.

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People who have dogs all have a common duty - to walk it. Lesson Content: XT: YY, What are you doing?
YY: I am walking my dog.
XT: DO you walk it every day?
YY: No, usually my mom walks it. I am walking it for the first time today.

• summary [´sʌməri]   a.&n.摘要(的)   (英语四级单词)