lifeblood, cosmetic, bobsleigh

President Ma's administration has moved to amend the controversial and restrictive anti-protest law. But student leaders have denounced the move as cosmetic and vow more protests.

AMERICAN JOURNEYS | BOSTON

A Science Lover’s Kind of Town

By ETHAN GILSDORF Home of Harvard and M.I.T., the town is an inspiring place to spend a few days if your idea of fun is probing the structure of DNA or designing a faster toy bobsled.

cosmetic 

adjective DISAPPROVING

describes changes, etc. that are intended to make you believe that something is better when, in reality, the problem has not been solved; superficial:

They were offered a few cosmetic improvements to their working conditions, but nothing of significance.

bobsled

bobsleigh UK 

noun [C] (US bobsled)

a small vehicle with long metal blades under it, built for racing down ice-covered tracks

Bobsleigh - Wikipedia, the free encyclopedia

有舵雪橇又稱為「長雪橇」，是一種以舵和方向盤控制的集體冬季運動項目，它的平均速度可達90公里至100公里，最高可達至120公里，而其雪橇是由金屬所成。

lifeblood 
noun [U]
the thing which is most important to the continuing success and existence of something else:
Tourism is the lifeblood of Hawaii's economy.