Dienite
丁烯均聚物
🗣️ 情景例句
Richard, these are terrific pictures. Richard
这些照片真棒。
Did you go play ball last night?
你昨晚去玩球了吗？
But often we play games, and I get home at 5:00. We have supper at about 6:00.
但是我们经常玩游戏，所以是五点到家。我们六点吃晚饭。