Npd
[化] 氮磷检测器
🗣️ 情景例句
It's Grandma's recipe.
这是奶奶的配方。
The problem is far from easy.
这问题绝非易事。
Notices forbidding the open-air drying of clothes, or the use of water points for car washing,
禁止露天晒衣服、禁止用水龙头冲洗汽车的布告