vt.

1. 使变白；漂白
   Old age blanched his hair.

   他因年老而满头白发。

2. 使变苍白
   Fear blanched her lips.

   她因恐惧而嘴唇煞白。

3. 使（植物）不见阳光而变白
4. 【烹】用沸水烫（杏仁等）以便去皮；用沸水烫使（蔬菜等）变白
5. 【冶】酸洗（金属）使有光泽；在……上镀锡

vi.

1. 变白；变苍白[（+with）]
   He blanched at the sight of blood.

   他看到鲜血吓得脸色煞白。

v.

1. make or become white or pale.
2. prepare (vegetables) for freezing or further cooking by immersing briefly in boiling water.
   ▸ [often as adj. blanched] peel (almonds) by scalding them.