The disorder produces foot deformities, drop foot and other difficulties that can be corrected surgically.
这种神经功能的紊乱会导致足部的畸形,垂足,以及其他病症,所幸这样的病变可以通过外科手术矫正。
By 1950, though, human activities had started to make an impact. Then, the water level began to drop at a rate of 30 centimeters (about a foot) each year.
到1950年,人类活动开始产生深远影响。那时,水平面开始以每年30厘米的速度下降。
Then, the water level began to drop at a rate of 30 centimeters (about a foot) each year.
那时,水平面开始以每年30厘米的速度下降。
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