硬壳

Traditional form:

硬殼

Pinyin (reading):

yìngké

Definitions:

• crust; hard shell

Characters:

• 硬 - firm, hard, strong; obstinate
• 壳 - casing, husk, shell

Traditional characters:

• 硬 - firm, hard, strong; obstinate
• 殼 - casing, husk, shell