单词学习：pal 名词/动词（非正式用语）
pal
/pæl/
n. 朋友，伙伴；v. 结为朋友
Pal is a common word for friend, and Mr. Gu often uses it to address his close colleagues.
“Pal”是“朋友”的常用词，顾老师经常用它来称呼他的亲密同事。
单词卡片
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