Pliosaur
上龙
🗣️ 情景例句
Could you slice the tomatoes for me, please?
请帮我把西红柿切成薄片好吗？
He has been to America.
他曾去过美国。[表示曾经有过的经验]
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。