hit or miss

常見例句

Keeping the information between the two tools synchronized was a hit or miss proposition.
保持這兩個(gè)工具間的信息同步是一個(gè)漫無目的的主張。
The network provides adequate coverage on the coasts (see map), but it's hit or miss in the middle of the country, and there are 12 states with no Sprint 4G service at all.
網(wǎng)絡(luò)在沿海地區(qū)提供了足夠的覆蓋率，但卻忽略了中部地區(qū)。在那里，有12個(gè)州壓根就沒有Sprint的提供的4G服務(wù)。
Ideally, I would love to use TrueCrypt to encrypt my USB drives in their entirety, but since having admin privileges is always hit or miss when traveling, it's a risk I can't afford to take.
理想上我希望使用TrueCrypt來完整加密U盤，但是因?yàn)樵诼糜螘r(shí)開啟管理員權(quán)限是很麻煩的事情，很難能每次都做到。

So it's this interesting scenario where it's probably hit or miss, certainly early on and as one of the clips they are indicated, these are the kinds of things where computers ideally have to learn overtime.
因此，這是一個(gè)有意思的事情,因?yàn)樗锌赡苁峭镀渌没蛘卟粚?duì)其胃口，當(dāng)然繼續(xù),正如其中一個(gè)短片所示，這些東西需要計(jì)算機(jī),花一些時(shí)間去學(xué)習(xí)。
哈佛公開課 - 計(jì)算機(jī)科學(xué)課程節(jié)選

Such books have a short shelf life and can be hit or miss.
FORBES: Booking Losses
Some people make money by price speculation, but that is hit or miss.
FORBES: The Next 10 Years
The job market, already hit or miss, would likely be put on pause.
FORBES: What a US Default, Downgrade Might Look Like