a. 惴惴不安的, 敏悟的, 知晓的
adj. 忧虑的；不安的；敏悟的；知晓的
1、be apprehensive for 担心
2、be apprehensive of 领悟…,意识到…
3、be apprehensive of... 对...忧心忡忡
4、be apprehensive that... 担心将发生...
5、apprehensive about 担心