使清洁，清洗使免除灰尘、玷污或罪责；洗净或清除。

To free from dirt, defilement, or guilt; purge or clean.

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可预测的是，上面的调优版本免除了所有处理程序成本，并使性能提高了一倍。

Predictably, in the above tuned version, the entire cost of the handler has been removed and performance doubled.

youdao

OpenAFS试图免除安装和管理用于使不同文件系统合作的软件时的痛苦。

OpenAFS tries to take the pain out of installing and administering software that makes differing file systems cooperate.

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