Nanoparticle
纳米粒
🗣️ 情景例句
to save money for my college tuition.
存钱准备我的大学学费。
No matter what the excuse, you must not be late.
不管有什么借口，你一定不要迟到。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些计划去偏远地区旅行，或在饮用水不现成的国家居住的人，应该知道如何使水适于饮用的各种办法。