Please put the cups on the tray.

请把杯子放在托盘上。

There is a lot of food on this tray.

这个托盘上有很多食物。

She carried the tea set on a tray.

她把茶具放在一个托盘上。

She brought the tea on a silver tray.

她用一个银托盘端来了茶。

Please put the dirty dishes on the tray.

请把脏盘子放在托盘上。