第 46 课: 跟随-2

They are following him. 她们跟着男人。

She is following them. 女人跟着他们。

He is following them. 男人跟着她们。

They are following her. 他们跟着女人。

He is building something out of blocks. 他在搭积木。

He is balancing something on his head. 他把东西顶在头上。

They are building something out of blocks. 他们在搭积木。

They are balancing something on their heads. 他们把东西顶在头上。