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科学家们正在研制治疗癌症的新药。
Scientists are developing new kinds of medicine to treat cancer.
youdao
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他们正在研制一种新型的火车头。
They are researching on a new type of railway engine.
youdao
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他们正在研制这一设备的新的旋转装置。
They are developing a new turning mechanism for the device.
youdao
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他们正在研制这一设备的新的旋转装置。
They are developing a new turning mechanism for the device.
youdao