不及物动词
1. Many species have now vanished from the earth. 许多物种已在地球上绝迹了。
2. When I turned around, she had vanished. 我转过身,她已不见了。
3. I thought it would rain, but the clouds have vanished and it's a fine day. 我原以为天要下雨的,可是云消失了,是个好天。