by-your-leave

基本解釋

We the people of Poland, when the country was enslaved by the time, is the right to leave your own country. -- Mrs. Curie.
我們波蘭人，當(dāng)國家遭到奴役的時(shí)候，是無權(quán)離開自己祖國的。襊—— 居里夫人。
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It is important to notice that, if your baby react to some certain juice by diarrhea or vomiting, leave and wait for some another one-month and then try again.
重點(diǎn)提醒是，如果你的寶寶因?yàn)楹攘四撤N飲料而腹瀉或者嘔吐，要記住遲點(diǎn)或者等一個(gè)月后再試喝。
If you can't bear to leave your sports news at home, sign up for "ESPN Alerts" by text message and download small-screen videos.
如果您想在離開家的時(shí)候也能收看體育新聞，那么您可以發(fā)送手機(jī)短信訂閱“ESPN新聞通報(bào)”并下載電視錄像。

you could leave your response to the invitation slightly open-ended by saying you're not sure.
你可以表示你不確定，開放性地回復(fù)這個(gè)邀請(qǐng)。
I don't know 課堂 - SpeakingMax英語口語達(dá)人

To try to effect a political federation of such disparate nations and cultures with hardly a by-your-leave of the people most directly affected is preposterous and ultimately self-defeating.
FORBES: Fact And Comment