narrow down   (TTS Sound)

The narrow_down has 2 Senses.

• specify, nail down, narrow, pin down, peg down, narrow down
• 絞り込む, 絞る, はっきり取り決める
• define clearly; "I cannot narrow down the rules for this game"
• 明確に定義する

• narrow, specialize, specialise, narrow down
• 特化, 絞り込む, 絞る, 専門にする
• become more focus on an area of activity or field of study; "She specializes in Near Eastern history"
• 活動分野または研究対象によりもっと集中する