If you sneer at someone or something, you express your contempt for them by the expression on your face or by what you say.
例句
There is too great a readiness to sneer at anything the Opposition does...对反对党的任何举动都想加以嘲笑的心理过于急切了。If you go to a club and you don't look right, you're sneered at...如果你去夜总会却穿得不合时宜，人家会笑你的。
英汉词典释义
vi.
讥笑, 冷笑
You many sneer, but a lot of people like this kind of music.你可以嗤之以鼻, 但很多人喜欢这种音乐。
n.
讥笑的表情(言语)
He said with a sneer.他的话中带有嘲笑之意。
英英词典释义
Noun
1. a facial expression of contempt or scorn; the upper lip curls
2. a contemptuous or scornful remark
Verb
1. express through a scornful smile;
"she sneered her contempt"
2. smile contemptuously;
"she sneered at her little sister's efforts to play the song on the piano"