動詞 blanch:

1. turn pale, as if in fear
   同義詞：pale, blench
2. cook (vegetables) briefly
   同義詞：parboil

1. You blanch almonds to remove their skins.
   你把杏仁焯一下，燙去表皮。
2. He blanched (with fear) at the sight of the snake.
   他看見蛇(嚇得)臉色煞白。
3. He blanched with shock.
   他嚇得臉都白了。

blanch

v.（動詞）
blanched 也作 blenched blanch.ing blench.ing blanch.es blench.es
v.tr.（及物動詞）
To take the color from; bleach.
使失去顏色；漂白
To whiten (a growing plant or plant part) by covering to cut off direct light.
變白：用遮蓋物擋住光線直射以使（生長中的植物或植物的一部分）變白
To whiten (a metal) by soaking in acid or by coating with tin.
在…上鍍錫：把（金屬）浸在酸中或鍍錫，使之變白

To scald (almonds, for example) in order to loosen the skin.
去皮：用沸水燙（如，杏）使之去皮
To scald (food) briefly, as before freezing or as a preliminary stage in preparing a dish.
滾，焯，燙：用沸水輕燙（食物），如冷凍前或在準備一道菜的開始過程中
To cause to turn white or become pale.
使變白或蒼白
v.intr.（不及物動詞）
To turn white or become pale:
發(fā)白或變蒼白：
例句：
Their faces blanched in terror.
他們的臉因恐懼而嚇得發(fā)白

來源：
Middle English blaunchen [to make white]
中古英語 blaunchen [使變白]
from Old French blanchir
源自 古法語 blanchir
from blanche [feminine of] blanc [white]
源自 blanche [] blanc的陰性詞 [白]
[of Germanic origin] * see bhel-
[源于日耳曼語的] *參見 bhel-

【引伸】
blanch.er
n.（名詞）