wary

Investors are wary of the new startup because its business model has never been tested.

(Chinese) 投资者对这家新创业公司持警惕态度，因为其业务模式从未经过测试。

The wild deer was wary of the rustling leaves and quickly bounded back into the forest.

(Chinese) 那只野鹿对树叶的沙沙声保持警惕，迅速跳回了森林。