These lipids are pin shaped molecules whose heads are attracted to water, and tails are repulsed by it.

些脂质是呈大头针状的分子，头部具有性，尾部具有疏性。

The engineers loaded these polymer-encased mRNA molecules into their turtle-shell pills, which were then swallowed by six mice.

工程师们将些聚合物包裹的mRNA分子装入龟壳状药片中，并让鼠吞下。

Like, they all create spores, single cells coated in a super tough, armor-like molecule that are an integral part of the bryophyte life cycle.

比如，它们都会产生孢子，单细胞被一层超级坚硬的盔甲状分子包裹，是苔藓植物生命周期中不可或缺的一部分。