sb：某人例句：Advise sb. not to drive too fast.忠告某人不可把車開得太快。

sb 即英文somebody的縮寫。詞性為復合不定代詞（同“something、anybody”一個詞性。）意思為：某人、某個人，sb是指人，sth是指物somebody相關(guān)短語：

1、get somebody off her duff 使某人采取行動...2、call somebody everything but 說某人…,只是沒用這...3、get somebody off his duff 使某人采取行動...4、do somebody the honor to 有幸somebody相關(guān)例句：Somewhere somebody sometimes does something good.在某處某人有時做某些好事。Since somebody let the gardener go.某人讓園丁卷鋪蓋了。