识正眼力的英文：
straight eye
adj. 直的；正直的；直率的；连续的；整齐的
adv. 直接地；坦率地；立即；不断地
n. 直线
straight or on the rock
纯的或加冰块
make(sth)straight or level
使（某物）变直或变平
Straight trees have crooked roots
直树也有曲根
You cannot be lost on a straight road
走直路,不迷途
These trees are noted for their straightness and hardness.
这些树的特点是树干挺直，木质坚硬。