积留的英文：
entrapment
On the top of very high mountains snow persists throughout the year
高山之顶,雪积留全年。
圈闭; 夹杂; 捕集
To hinder,entrap,or entangle as if in mire.
使受困扰使阻碍、牵绊或纠缠如陷入泥沼一般。
Fresh snow is full of entrapped air.
刚下的雪饱含着空气。
Dirty steel due to entrapment of slag or pieces of refractory.
因夹杂炉渣或耐火材料颗粒而造成的不纯净钢。
entrapped by a skillful interviewer into making a damaging statement
为狡猾的提问人所诱导而发表的不利言论
A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.
气疱在成石过程中在火山岩中包含气体的一种小洞穴