Black scours
[医] 黑泻病, 牛秋季腹泻病
🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
[医] 家畜腹泻病
🗣️ 情景例句
A credit card is very useful when you go traveling.
当然旅游的时候，信用卡很有用。
She must be a model, isn't she?
她一定是个模特，不是吗？
It was important to carry out the work quickly, so an extra team of men were asked to work on the repairs one evening.
因为尽快投入修理工作显得十分重要，于是一天晚上加派了一支工作队来参加维修工作。