shrug

When I asked him if he knew where the keys were, he just shrugged and continued reading.

(Chinese) 当我问他是否知道钥匙在哪时，他只是耸了耸肩，继续看书。

The witness shrugged his shoulders to indicate that he could not remember the exact date.

(Chinese) 证人耸了耸肩，表示他不记得确切的日期了。