lukewarm

1. ADJ Something, especially a liquid, that is lukewarm is only slightly warm. (尤指液体) 微温的

Wash your face with lukewarm water. 用温水洗脸。

2. ADJ If you describe a person or their attitude as lukewarm, you mean that they are not showing much enthusiasm or interest. 不热情的; 不感兴趣的

Economists have never been more than lukewarm toward him. 经济学家们从未对他有过多少兴趣。