单词：obstructed
obstructed的用法和样例：
例句
- For severe cases we used guided-wire for recanalization.After alternative pushing and injecting for several times, most of the obstructed fallopian tubes could be recanalized.对于阻塞较严重的病人，直接进入导丝再通，在推注及导丝的反复作用下，大部分阻塞的输卵管均可复通。
- unobstructed无阻碍的
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