景深也很浅，离开焦点一寸大概就什么都看不清了，背景不应该是难题，。

来源: 移花接木于 2022-12-04 17:26:06 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.