the long - term preservation的用法和樣例：
例句
- It really does not achieve the goal of the long-term preservation certain of these animal species.
這實(shí)際達不到長(cháng)期保存某些動(dòng)物物種的目的。 - Through cryopreserving and thawing,human red blood cells can be conserved for a long time.
紅細胞的冰凍與解凍的實(shí)施為血液的長(cháng)期保存提供了有效的方法。
