用法:
1 secondary.

用法:
2 secretary.

• ordeal
• order 1
• order-book
• ordered
• order-form
• orderliness
• orderly 1
• order-paper
• ordinal
• ordinance
• ordinarily
• ordinary
• ordinary level (also O level)
• ordinary seaman
• ordination
• ordnance
• Ordnance Survey
• ordure
• ore
• organ 1
• organdie (US also organdy)
• organ-grinder
• organic
• organically
• organic chemistry