我向他们挥手道别。

I waved off them.

youdao

他看到了教室后面有一群孩子。“我试着向他们挥手，引起他们的注意，但没有得到任何回应。”他说。

He observed one group of children behind rocks. "I tried to wave to them and to get their attention, but I didn't get a response," he said.

youdao

“我试着向他们挥手，引起他们的注意，但没有得到任何回应。”他说。

"I tried to wave to them and to get their attention, but I didn't get a response," he said.

youdao