have only to

基本解釋

Yet, the neophytes have only to look toward their neighbor South Korea to conclude that the need for reform remains.
然而，剛實行該制度的國家只需要留意一下其鄰邦韓國就可以得出結(jié)論-改革的必要性依然存在。
That said, most gay Americans above a certain age have only to dip into their memories for proof that their country has grown dramatically more tolerant.
那也就是說，多數(shù)基于一定年齡的美國同性戀者僅沉浸在他們的想象中論證自己的國度戲劇性的變得更為包容。
An electronic reading supplies me with a list of the frequencies, which I have only to glance at to form an idea of the problems the book suggests to my critical study.
電子閱讀給我的感覺就像是一個頻率的列表，我只要瞥一眼這個列表，就能知道這本書對我的研究可能會有怎樣的幫助。

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.
So I will ask you questions. The only annoying thing I will have to do is to repeat your answers.
所以我要向你們提問,唯一很討厭的就是我要你們重復(fù)你們的回答。
耶魯公開課 - 1945年后的美國小說課程節(jié)選
The only university requirement is, or that I have to take is American Cultures.
學校規(guī)定必須選的是美國文化。
關(guān)于授課系統(tǒng) - SpeakingMax英語口語達人

That said, most gay Americans above a certain age have only to dip into their memories for proof that their country has grown dramatically more tolerant.
ECONOMIST: Gay marriage