Dichromaticism
二色性
🗣️ 情景例句
Oh, who could that be?
啊，这会是谁呢？
To youth I have but words of counsel -- work, work, work.
对青年人，我要奉劝几句话∶工作，工作，再工作。
Goats are also kept. Apart from their milk, the wool from their coats is used in expensive clothing.
除了获取羊奶之外，从羊皮上剪下的羊毛还用来制作昂贵的服装。