Nonfouling
未污染的, 未弄脏的, 无污垢的, 无污泥的
🗣️ 情景例句
And next time we'll bring Michelle.
下次我们带Michelle来。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡