His brow corrugated with the effort of thinking.
他皱着眉头用心地思考。
His brow corrugated with the effort of thinking.
他皱着眉头用心地思考。
The politician played on the patriotic sentiments of the people from ulterior motives.
那个政客别有用心地利用人们的情
。
：以上例
、词性分
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