Backfilled
v. 回填（挖掘的洞穴）( backfill的过去式和过去分词 )
🗣️ 情景例句
I remember exactly.
我记得很清楚。
Happy birthday!
祝贺您生日快乐！
For them this is a major operation which involves considerable planning.
看戏在他们是件大事，需要精心计划。