减轻的英文：
lighten
ease
alleviate

参考例句：

allay back pains.
减轻背痛

Cushion a blow.
减轻打击

To pardon and mitigate punishment
宥恕减轻

Ease off; calm down
减轻某人之..

She paid the repair bill as a salve to her conscience.
她付了维修费以减轻内疚感。

There pills will allay pain.
这药丸可以减轻疼痛。

Many of the symptoms will regress or disappear
许多症状将减轻或消失。

Beta-blockers alleviate pain and slow the heart rate.
β阻断剂能够减轻疼痛，降低心跳速率。

Having a cup of coffee can ease off your pressure.
喝杯咖啡可以减轻你的压力。

I need nasal decongestant sprays.
我需要减轻鼻充血的喷雾剂。

lighten是什么意思：
v. 使...更明亮；使轻松

The sky began to lighten.
天空开始变得明亮了。

He needs to lighten up a little.
他需要放轻松点。

The pilot ordered the baggage to be thrown out to lighten the plane.
驾驶员命令大家抛掉行李，以减轻飞机的负载。

ease是什么意思：
n. 容易；舒适；自在
v. 减轻，缓和；放松

bremsstrahlung produced at an internal target of the accelerator will have a maximum photon energy equal to Ea
在加速器的内靶上产生的轫致辐射的最大光子能量将等于Ea。

At ease! Attention!
稍息！立正！

They gained the game with ease.
他们很轻松地赢得了这场比赛。

alleviate是什么意思：
v. 减轻，缓和

They alleviated the boredom of waiting by singing songs.
他们以唱歌来减轻等候的厌烦.

Increasing budgetary funds and loans for poverty alleviation.
增加财政扶贫资金和扶贫贷款。

Their energies were focussed on the alleviation of the refugees' misery.
他们把精力集中在减轻难民们的苦难上。