...diseases caused by unsanitary conditions.
由不卫生的环境引起的疾病
Discharge of raw sewage into the sea is unsanitary and unsafe.
把未经处理的污水排放到海里既不卫生也不安全。
👨🏻🏫 Mr. Ng 柯林斯詞典 📚 – collins.mister5️⃣.net切換為繁體中文