She has invented a nifty little gadget for undoing stubborn nuts and bolts.
她发明种灵巧的小工具用来松开紧固的螺母和螺栓。
She has invented a nifty little gadget for undoing stubborn nuts and bolts.
她发明种灵巧的小工具用来松开紧固的螺母和螺栓。
The new president spent the first year undoing the work of his predecessor.
新总统用年的时间来收拾前任总统留下的摊子。
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