Black disease
[医] 黑病(羊传染性坏死性肝炎)
🧩 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;
🗣️ 情景例句
What material is this made from?
这是什么材料做的？
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
and at the most critical juncture we took turns in watching that point.
在最紧急的时刻，我们轮流监视那段河流的险情。