I can tell just by looking at him that I won't like him. 如何翻译？ 句子结构怎样分析？

tell: 在这里指知道，断定的意思。

by doing sth: 凭， 靠。。。

I 主语；can tell 谓语；by looking at him 状语；that I won't like him 宾语。

整句翻译：
只凭看他一眼，我能断定我不会喜欢他。

我只看他一下就知道我是不会喜欢他的。

I 主语；can tell 谓语；by looking at him 状语；that I won't like him 宾语。

我可以告诉只要看一眼他，我不会喜欢他。