In class we have been discussing people and how to describe them.
课上，我们一直在讨论人和如何描述人。
Discussing dynamically in class is the important form of classroom instruction.
互动讨论是课堂教学的重要形式。
We were discussing various kinds of clock in my kindergarten class.
幼儿园里，我们正在讨论各种各样的钟。
We were discussing various kinds of clock in my kindergarten class.
幼儿园里，我们正在讨论各种各样的钟。
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