weeding out; elimination (e.g. of unneeded employees); culling; selection
《biology》selection
自然淘汰で弱い個体が消えていく。
Weaker individuals disappear through natural selection.
競争に負けた企業が淘汰された。
Companies that lost the competition were weeded out.
時代遅れの技術は淘汰される運命だ。
Outdated technology is destined to be eliminated.