1. Cleaned;
2. Clean是一个不及物动词,它的过去式是cleaned;
3. Clean还有一个过去分词形式,即cleaned,它可以用来构成完成时的句式,比如:He had cleaned the room before he left. 他离开之前已经把房间打扫干净了。
1. Cleaned;
2. Clean是一个不及物动词,它的过去式是cleaned;
3. Clean还有一个过去分词形式,即cleaned,它可以用来构成完成时的句式,比如:He had cleaned the room before he left. 他离开之前已经把房间打扫干净了。