All work surfaces should be kept clean during all stages of the canning process.

所有的工作表面应保持清洁所有阶段的罐头进程。

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Cut way back on hill work, and be sure to run on even surfaces.

砍去山坡训练，一定要在平路上跑。

youdao

Cut way back on hill work, and be sure to run on even surfaces.

砍去山坡训练，一定要在平路上跑。

youdao