be at a loss to understand ...
我不明白……
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Now that I know this, I am at a loss to understand where this professor saw these works, since they have perished, so that he can be sure that none of them described the eternal human qualities.
现在既然知道了这一层，却更不解它们既已消灭，现在的教授何从看见，却居然断定它们所写的都不是永久的人性了。
youdao
应用推荐
模块上移
模块下移
不移动