Polyhydrocyanic acid
[化] 聚氢氰酸
🧩 词语组成解析
🗣️ 情景例句
And this is Alexandra Pappas.
这位是Alexandra Pappas。
This is my second trip to the United States, and I really enjoy staying here.
这是我第二次美国之行，我很喜欢这里。
He took off the first shoe and threw it on the floor.
他脱下第一只鞋子，把它丢在地板上。