tray cap

例句：

1. 1. The chef placed the tray on the table and added a tray cap to protect it.
   厨师把托盘放在桌子上，并加了托盘盖来保护它。
2. 2.The waiter carefully placed the tray in the center of the table and added a tray cap to keep it secure.
   服务员小心地把托盘放在桌子中央，并加了托盘盖来确保它安全。
3. 3. The chef used a tray cap to prevent food from spilling when serving desserts.
   厨师用托盘盖防止在上甜点时食物溢出。