Eventually the enamel-building cell dies off, leaving a long crystalline rod behind.

最终造釉细胞死亡，留下了长长的透明结晶体。

The living matter within the cell dies off, leaving behind only the cellulose.

细胞死亡，只留下纤维素。

We didn't exactly forget, it's just usually when the hostess dies the party's off.

我们没有忘记 只是随着女主人的去世, 晚宴也取消了。

When it dies off, all of a sudden now, the valve flap that it was holding on to can invert.

当其死亡时，瓣膜瓣突然翻转。

On the other side of the battlefield there's an alarmed cry from the Viet Cong fighters and the firing dies off briefly.

在战场的另一边， 越共战士发出惊恐的叫声，射击短暂地停止了。

Well, instead of simply exploding, our Sun will actually start to get much bigger, turn red and become slightly colder, but still scorching as it dies off.

嗯，不是简单的爆炸，我们的太阳其实会变得更大，变红，而且会变得有点冷，但当它消失时仍然会非常灼热。

When progesterone reaches its lowest level, the spiral arteries collapse, and the functional layer dies off and is eliminated through menstruation, which marks the beginning of a new menstrual cycle.

当孕激素达到最低水平，螺旋动脉破裂，子宫内膜功能层脱落，形成月经，也开启了一个新的月经周期。

Over time, as the invading pathogen dies off, most of the B and T cells die of neglect, but a few turn into memory B cells and memory T cells, which linger for years in case they're needed in the future.

时间不断推移，随着入侵病原体的死亡，大多数B细胞和T细胞会因闲置而死亡，但一小部分会转变成记忆B细胞和记忆T细胞；它们会逗留多年，以备不时之需。