persistence

1. N-UNCOUNT If you have persistence, you continue to do something even though it is difficult or other people are against it. 堅持不懈; 執著

Skill comes only with practice, patience, and persistence. 衹有通過練習、耐心和堅持不懈才能獲得技能。

2. N-UNCOUNT Thepersistenceof something, especially something bad, is the fact of its continuing to exist for a long time. (尤指壞事物的) 持續存在

...an expression of concern at the persistence of inflation and high interest rates. …對持續通貨膨脹和高利率所表示的關注。