Backlogged
积压（ backlog的过去式和过去分词 ）
🗣️ 情景例句
He prays every night before sleep.
他每晚睡觉着都祈祷。
You play the piano beautifully.How much do you practice every day?
你完美地弹钢琴,你每天花多少时间练习？
I can understand why.
其原因我能理解。