Fluorochemicals
含氟化合物
🗣️ 情景例句
Our boss doesn't give us any slack
我们老板不让我们有一丝松懈。
That noise is driving me crazy.
那噪声吵昨我要发狂。
The village seemed deserted, the only sign of life being an ugly-looking black goat on a short length of rope tied to a tree in a field nearby.
村里似乎无人居住，唯一的生命迹象是附近田里一只面目可憎的黑山羊，用一截短绳拴在一棵树上。