Traganth
胺黄树胶
🗣️ 情景例句
I don't like to waste my time chatting on the net.
我不想把时间浪费在网络聊天上。
He skinned his knee.
他擦破了膝盖的皮。
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？