Ethanthiol
己二硫醇
🗣️ 情景例句
to pick up the dog.
把狗领回去了。
Education has for its object the formation of character.
教育的目的在于培养品德。
Some children were playing games on the bank and there were some people rowing on the river.
河岸上有些孩子正在玩耍，河面上有些人正在划船。