19考研英语：屠屠长难句（七十六）

01 每日长难句
Clever though this is, it is just a stepping stone towards the direct incorporation of fuel cells into portable devices and, in particular, laptops—the application that remains the industry’s Holy Grail.

02结构分析】
本句句首是though构成的部分倒装，还原后应为though this is clever。主句为it is just a stepping stone，towards引导短语结构 the direct incorporation of fuel cells into portable devices and… laptops修饰前面的a stepping stone。破折号后面的the application是同位语作用， that remains the industry’s Holy Grail是定语从句。

03【词汇】
a stepping stone 垫脚石

incorporation 合并，整合

portable 可携带的，可搬运的

laptop 笔记本电脑

04【参考译文】
虽然这很聪明，但它只能算是通往直接将燃料电池与便携设备——特别是笔记本电脑——整合的道路上的垫脚石，这一技术运用现在仍是工业界的圣杯。

05【明日长难句】
The engines would have variable nozzles, which would be fully opened on take-off and landing, so that the exhaust would be slow and relatively quiet, and narrowed when the aircraft was cruising, providing the necessary speed.  

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