Polymerphism
同质多晶体现象
🗣️ 情景例句
I got a Dear John letter from her.
我收到她的绝交信了。
Take your time.
慢慢来。
In 1975, a primitive machine called the Altair, was launched in the USA.
1975年，美国推出了一台被称为“牛郎星”的原始机型。