Phosphodihydroxyacetone

磷酸二羟丙酮

🗣️ 情景例句

All students without exception must take the English examination.
所有学生毫无例外地都必须参加英语考试。
What time does the train for Boston leaves?
去波士顿的火车几点开?
After I had sat down, he said that business was very bad.
待我坐下后,他说生意非常不景气。
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