It would squeeze the capsule tightly as the heart contracted and still keep a firm grip on it when the heart was relaxed.

它可以随着心脏的收缩轻微挤压胶囊，且在心脏放松时，也能紧紧抓住。

It gradually contracted and cooled and as it contracted, it would separate out rings of gas, so you'd have a ring of gas here, a ring here and so forth.

它逐渐收缩冷却，并且随着收缩，分离气体环，所以气体环在这里、一个环在这里，等等。

The pupils of her grey eyes were as contracted as those of a cat coming out of the broad daylight, and she had the restful feeling, and clear expression of a person just waking up.

灰色的眸子，瞳孔紧缩的如同光天化日之下的猫，有一种刚睡醒的安宁感，清晰的神情。