give an edge to

• vt. 加剧(使尖锐化；鼓舞；使兴奋)

例句

用作及物动词 (vt.)

1. His words were an encouragement to me.
   他的话鼓舞了我。
2. Her word of praise is a stimulus to work harder.
   她赞扬的话鼓舞人工作更努力。