exolever
牙根挺 [口腔] root elevator
释义细螺旋形根挺 fine screw type root elevator
牙根尖挺 apex elevator ; Apical elevators
根尖挺 Apex Elevator ; apical elevator
如果病菌侵入它们的根或者伤害了它们的树皮，一棵树在死亡之前还可以挺25年。
A tree can take 25 years to die if disease gets into the roots or wounds in the bark.
youdao
你看前面那根石柱挺特别的！
Look at that stone column, really something special!
爸爸的头发像扫把，根根直立向上插。而我，我的头发挺懒惰。
My papa's hair is like a broom, all up in the air.
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