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例句 | DEFINITIVE EXAMPLES 权威例句〔ascertain〕Experts were unable to ascertain the cause of the accident.专家们无法查出事故原因。麦克米伦高阶〔detectable〕Doctors say the disease is probably inherited but not detectable at birth.医生说该疾病可能是遗传而来,但在出生时无法查出。柯林斯高阶 |
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