| 单词 | 样样精通 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔a thing or two〕She thinks she knows everything about raising children, but I could tell her a thing or two (= some information she does not know).她觉得自己对于养育孩子样样精通，不过我倒可以让她见识一二。剑桥高阶 |
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