touch on

动词

中文：简要提及、粗略讨论、轻描淡写、短暂来访

To mention briefly; to cursorily discuss. (transitive) · We touched on the subject of wages, but we didn't reach a conclusion.
To come or go to for a short time. (transitive)

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So far as they touch on this case, absolute loyalty and truth are the ones paramount.

With his instinctive delicacy Edmond had preferred avoiding any touch on this painful chord, and Faria had been equally silent.

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