両りょう睨にらみ

noun, noun or participle which takes 'suru', transitive verb

keeping a close watch on both sides; keeping an eye on two things at once

Often used in strategic or competitive contexts where one must monitor two opposing parties or two separate matters simultaneously.

• 彼かれは両りょう睨にらみを利きかせて、二ふたつのプロジェクトを同どう時じに監かん視ししている。

  He keeps a close watch on both projects at the same time.

• 交こう渉しょうでは、常つねに相あい手て側がわと競きょう合ごう他た社しゃを両りょう睨にらみしておく必ひつ要ようがある。

  In negotiations, you must always keep an eye on both the other party and your competitors.