be in luck

基本解释

So if you like the whole bacon and eggs with hash browns routine in the morning, you just may be in luck!
因此，如果你恰巧早餐喜歡喫整塊培根肉、雞蛋外加土豆煎餅的話，那你可就走運了！
www.chinadaily.com.cn
If you can travel 36 light-years—roughly 212 trillion miles—to a new planet discovered by astronomers, you might just be in luck.
假如您能旅行36光年，或者大約212萬億英裡，到天文學家發現的一棵新行星上去，您一定會走運的。
But rebellious smokers may be in luck: The NYPD is leaving enforcement of the new ban up to the Parks Department, which doesn’t appear to be cracking down anytime soon.
但是叛逆的吸菸者也許是運氣好：紐約市警察侷正將新禁菸令的執行移交給紐約市公園琯理部門，這個部門看起來似乎不會很快採取嚴厲措施。

In some cases, the back of the head could be more expressive than the front, in which case this is your opportunity and I wish you luck.
有些時候,後腦勺確實比正臉更有表現力,這才是你們的機會,祝你們好運
耶魯公開課 - 基礎物理課程節選

Survival games tend to do this better than action games, so we may be in luck.
FORBES: [Spoilers follow.]
Well, if that's on your bucket list, then you might just be in luck.
ENGADGET: Alt-week 3.2.13: A mission to Mars, robosparrow and facial recognition in fertility treatment
Investors eager to buy a stake in Facebook may finally be in luck.
FORBES: Facebook Stake Up For Grabs As Russian Internet Giant Prepares IPO