Operant
n. 发生作用之人或物, 工作之人或物\\na. 动作的
🗣️ 情景例句
but now what?
但下一步怎么办？
Happy is he that is happy in his children.
对自己孩子感到高兴的，才是幸福的人。
They have to work hard to support their family.
他们必须努力工作来支持他们的家。