Nonfouling
未污染的, 未弄脏的, 无污垢的, 无污泥的
🗣️ 情景例句
or we won't be finished by dinnertime.
要不然， 晚餐时间到了我们还做不完。
We are mutual friends.
我们彼此是朋友。
To such motives, yet another must be added.
除了以上动机外，还应再加上一个。