These, though hard to monitor, could mean a lot if they work.

尽管很难监督这些承诺，但是如果承诺能够兑现，则意义深远。

youdao

Labour represents around 70% of Japanese business costs: though hard on individuals who are sacked, the rise of non-regular workers has let firms cut costs fast.

劳动力成本约占到日本商业总成本的70%：虽然对被解雇的人有些残酷，非正式工的增加让企业能更快地削减成本。

youdao

Though hard to prove (national figures are not available), anecdotal evidence suggests that the family grant can be worth less than the former array of benefits.

虽然很难证实(缺乏国家数据)，但是观察证据显示现在一个家庭的补助金比起以前要少。

youdao

Even though a hard drive spins at 7200 times per minute or even faster, that's relatively slower than the speed of light.

即使一个硬盘驱动器的转速达到每分钟7200次,甚至更快，仍然比光速慢。

哈佛公开课 - 计算机科学课程节选

That's really hard to do though, you know.

但这真的很不容易做。

想成为配音演员 - SpeakingMax英语口语达人

We are also put in mind of how the war is, in fact, anything but a revel, though it, too, may have been provoked by a cause as insignificant and hard to trace as "some wizard vermin."

我们同样也思考事实上战争，只是一场狂欢，尽管它有可能,是由一个毫不重要难以追踪的“一些害虫“引起的“

耶鲁公开课 - 现代诗歌课程节选

That's a huge win during the testing cycle, though hard to replicate in the real world.

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Dr Kabamba, though hard up, enjoys the respect that doctors receive in all societies.

ECONOMIST: The poor: The mountain man and the surgeon | The

Most of its main British rivals are also thought to be unprofitable, though hard data are scarce.

ECONOMIST: Online grocers