No tool rest, tongue guard or side guard.

没有靠山，舌形的护罩，侧面的护罩。

youdao

A sharp tongue is the only edged tool that grows keener with constant use.

尖刻的舌头却是一柄唯一的愈用愈锋利的刀子。

youdao

A closer inspection of the tool mark shows a series of parallel teeth marks, probably from the use of a plumber's wrench or tongue-and-groove pliers.

放大后的检验，可见一系列平行的齿纹，有可能来自管钳，会其他靠钳齿来抓牢工件并旋转的钳子。

youdao

Dr. Bob knew that 90 percent of bad breath comes from a dirty tongue, and he was certain he had invented the very best tool for removing those bacteria.

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