unimpeded;unblocked ;

We were part of an entire regiment that had nothing else to do but to keep that highway open.
整个团除了保持那条公路畅通就无事可干,而我们就是这个团的一部分。
来源:《柯林斯高阶英汉双解学习词典》This formerly inaccessible place can now be reached by road and rail.
这里过去是穷乡僻壤,现在铁路公路都畅通了.
来源:《现代汉英综合大词典》We ought to channel this street so that water can flow away easily.
我们应该给这条街开辟水道,以便水能畅通地流走.
来源:《现代汉英综合大词典》
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