用法:
1 structure made of bars or wires in which birds or animals are kept or carried 鸟笼; 兽槛.

用法:
2 enclosed platform used to raise and lower people and equipment in the shaft of a mine （矿井中的）升降车.

• hard currency
• hard disk
• hard drug
• harden
• hard-headed
• hard-hearted
• hard-hitting
• hardiness
• hard labour
• hard-line
• hard-liner
• hardly
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• hard porn
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• hard sauce
• hardship
• hard shoulder
• hard-top
• hardware
• hard water
• hard-wearing
• hardwood
• hard-working
• hardy