Media advertising (magazines, newspapers, radio and television), although expensive, provides mass coverage.

媒体广告(杂志、报纸、电台和电视)，虽然昂贵，但却覆盖广泛。

youdao

Although they're expensive, they last forever and never go out of style.

尽管它们贵，它们永远耐用并且永不过时。

《柯林斯英汉双解大词典》

Although prices are falling in absolute terms , energy is still expensive.

尽管能源的绝对售价在下降，但仍然昂贵。

《牛津词典》

"It is very expensive to drill bore holes in Somalia. It is a very lengthy, cumbersome process, although that is ideally the way to go.

VOA: standard.2009.10.06

Although people might think that buying like local produce is like more expensive,

虽然人们觉得买当地产品更贵一些，

在绿色市场 - SpeakingMax英语口语达人

"I do believe we probably should step up the relatively unobtrusive and relatively easy, although sometimes somewhat expensive, means of looking for explosives perhaps many more K-9 bomb teams at these kinds of places and we should continue put a lot of resources in intelligence work."

VOA: standard.2010.03.30

And the house they bought, although expensive to them, was one of the cheapest inside the gates.

NPR: Weak Housing Market May Not Be Signal to Buy

The B-2 stealth bomber, although expensive, can nonetheless save money.

CENTERFORSECURITYPOLICY: Center for Security Policy | SUMMARY OF THE CENTER FOR SECURITY POLICY��S SECOND HIGH-LEVEL ROUNDTABLE ON THE FUTURE OF THE MANNED BOMBER FORCE

The Premium Network graph (buys), although more expensive than the aggregate media, show an uptick at the top of the frequency curve due to the quality of the inventory with regards to user engagement.

FORBES: Four Crucial Takeaways On Facebook ROI