Definition: impossible to avoid or prevent Level: C1
由于暴风雨，一些航班延误是不可避免的。
Due to the storm, some flight delays were ___unavoidable.
这座城市的交通拥堵似乎是一个无法避免的问题。
The city's traffic congestion seems to be an ___unavoidable problem.
在任何复杂的项目中，一定程度的冲突是不可避免的。
In any complex project, some degree of conflict is ___unavoidable.
