1. Enriched uranium is a key component of a nuclear weapon. 浓缩铀是核武器的一个关键组成部分。
2. The wounds in body and mind will get healed temporarily and spiritual emptiness will be enriched for a while. 身心的创伤得到了暂时的平复，精神的空虚得到了刹那的充实。
3. Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient. 溶液中的盐份富集在聚合物分子的带电基团附近，并形成盐浓度梯度分布。
4. One group developed in an "enriched" environment, which allowed the rats to interact with other rats, play with toys, and receive maze training. 一组老鼠在“充实”的环境中成长，这使得老鼠可以与其他老鼠互动、玩玩具，并接受迷宫训练。
5. Heavier isotopes tend to be left behind when water evaporates from the ocean surfaces, the remaining ocean water becomes progressively enriched in oxygen 18. 当水从海洋表面蒸发时，往往会留下较重的同位素，所以剩余的海水会逐渐富含氧18这种同位素。
