Digging deeper, I recalled when we were housebreaking a puppy, and just before Ed got home from work, the pup relieved herself on the couch.

• 继续往深处挖掘，我想起了训练小狗保持卫生习惯的事儿，就在埃德下班回家前小狗已在沙发椅里撒了尿。