我们已经用尽了所有其他治疗方法。

We have exhausted all other ___avenues of treatment.

探索新的投资途径对增长至关重要。

Exploring new ___avenues for investment is crucial for growth.

在做出决定之前，她考虑了所有可能的途径。

She considered every possible ___avenue before making a decision.