answer key短语⁵⁷⁷³⁰ 基本例句 答案,题解 But to mark the tests, they have to use an answer key sent down from the States. 不过为了给测试判分，他们使用的是从美国发来的答案。 yeeyan We were all eyes when the professor wrote down the answer key to the test. 当教授把考试答案写下来的时候，我们都目不转睛地看着。 hicoo