名词
中文翻译：填塞物
同义词：
['filler', 'stuffer']
例句：
-
1. The backfiller was a surprise, as I had not anticipated it.
填充物是个惊喜，因为我没有预料到。
-
2. The backfiller made the room feel much cozier.
填充物让房间感觉更温暖舒适。
-
3. The backfiller was used to fill in gaps in the wall.
填充物用于填补墙壁的缝隙。