Language Point 47
... without having to check your tracks in a rear-view mirror. (Para. 14)
Meaning: ... without looking back with a regret at what you have done.
rear: a. at the back; in the back 后面的
He left by the rear door of the house.
他从房子后门走了。
She returned to rear military centre about fifteen miles behind the front lines.
她回到了离前线大约15英里的后方指挥部。
n. the back part; back
The kitchen is in the rear of the house.
厨房在房子的后面。