look down look across不可以直接用吗?为什么加to!

look down:

俯视;向下看;用目光慑服某人;看跌

You may tend to look down or away when greeting someone.

当欢迎某人时,你可能倾向于低头看或转移目光。

look down 不用to,用on或upon看不起的意思:

Don't look down upon women.

look across to眺望…的另一边

look across the lake俯瞰湖面;俯视湖面

加to是往……看;

“When you look across the table and see the Mexicansasleep, youknowitmustbenight-time

in Mexico,” the attendee said.

他表示:“当你从会议桌看过去,发现墨西哥人睡着了,你就知道,现在一定是墨西哥时间的夜晚。”