| 单词 | be studying for |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔study〕She's been studying for her doctorate for three years already.她攻读博士学位已经有3年了。剑桥高阶She's been studying for her doctorate for three years already.她攻读博士学位已有三年了。剑桥国际 |
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