spare no effort

Verb

idiomatic

(idiomatic) To do everything within one's powers to achieve something.

Japanese Meaning

全力を尽くす / 努力を惜しまない / 惜しみなく尽力する / あらゆる手段を講じる

The rescue team will spare no effort to find survivors after the earthquake.

救助隊は地震後に生存者を見つけるためにあらゆる努力を惜しまない。

Sense（1）

(idiomatic) To do everything within one's powers to achieve something.

spares no effort

（ present singular third-person ）

sparing no effort

（ participle present ）

spared no effort

（ participle past ）

spared no effort

（ past ）