extensive /ɪk'stensɪv/ adj. 广泛的；广博的

击收听音频跟读 ↓↓↓ ↓↓↓ ↓↓↓

例句/词组:

Extensive research has been done into this disease.

对这种疾病已进行了广泛研究。

英语解释：

including or dealing with a wide range of information 广泛的；广博的