Heterostracan
a. Heterostraci的变形
🗣️ 情景例句
Remember our first fishing trip?
还记得我们第一次去钓鱼吗？
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
certainly it is more difficult than the arts which involve appreciation of flat forms,
欣赏雕塑品当然比欣赏平面的艺术品要难。