key feature

• 关键特征

key feature的用法和样例：

例句

1. At best, one can outline a few key characteristics.
   充其量你只能大致描绘出它的一些关键特征。
2. Another key feature of this remnant is the long white line running from left to right across the center called the equatorial belt.
   该遗迹的另一关键特征是，赤道方向有一道明亮的白色环带，自左向右穿过穿过遗迹的中心，名为环赤道带。