heighten的基本意思是“(使)变高”“(使)增大”“(使)加强”,既可用作不及物动词,也可用作及物动词。用作及物动词时,接名词或代词作宾语。

heighten further(v.+adv.)
进一步加强 strengthen further
▲heighten sth⇔further
It heightens still further the sense of speed.它进一步加强了速度意识。

用作不及物动词
▲S+～(+A)
Day by day the structure heightened.建筑物逐日增高。
As she waited, her fears heightened.她等着的时候更加恐惧了。
Their industry always heightened at the boss' approach.只要老板一到,他们就勤快起来了。
用作及物动词
▲S+～+n./pron.
I am going to heighten the wall.我打算把围墙加高。
The builder heightened the doorway to accommodate the tall owner.建筑师把门口加高以适应这个高个子房主的需要。
The dramatic lighting heightened the effect of the exhibition.那引人注目的灯光加强了展览会的效果。
The automation line heightens the effect.自动线能提高效率。
This only heightens our admiration.这只能使我们更加敬佩。
The news heightened my fears.这消息使我更加恐惧。
◇ 用于be ～ed结构
The building had been heightened by the addition of the second storey.这幢楼房从两层楼往上又加高了一层。

heighten, aggravate, intensify
参见intensify条。
heighten, boost, elevate, enhance, exalt, grow, hoist, lift, raise
参见raise条。