We were outclassed and physically immature.我们远远比不上别人, 身体也还没发育完全。
The boy was sexually immature.这男孩在性方面尚未成熟。
英语词组固定搭配大全包含52743条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。