🧩 词语组成解析
n. [口语]环境保护论者
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
Out of sitght, out of mind.
眼不见，心不想。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。