Externus
外的, 外部的, 外界的(指远离器官或体腔中心的结构)
🗣️ 情景例句
I can understand that.
我们能理解。
The tongue is not made of steel,yet it cuts.
舌头不是钢，一动把人伤。
it is not always safe by the time it reaches the tap.
等水到达龙头时就不一定总是安全的了。