capacity
n. 英 /kəˈpæsəti/ 美 /kəˈpæsəti/
評選委員山兔：本期主咖詞capacity需要注意第二個a應是閉音節，city注意「ci」別被吞音。整體需要兼顧流利度和準確性。（投票見文末）
capacity在法律英語中的常見含義
《元照英美法詞典（中文）》：（1）能力；意思能力；行為能力；責任能力 （2）適格性；資格；（3）身份；地位
《布萊克法律詞典》：The mental ability to understand the nature and effect of one's acts; the ability or power to do or experience something; the power to create or enter into a legal relation under the same circumstances in which a normal person would have the power to create or enter into such a relation; the role in which one performs an act.
legal capacity 法定資格；法定能力
testamentary capacity/capacity of testator 遺囑能力；立遺囑的法定資格
capacity defense 能力欠缺抗辯；刑事責任欠缺能力抗辯
capacity to contract/contractual capacity 訂立合同的能力
capacity of corporation 法人的行為能力
capacity to labor 勞動能力
capacity to sue or to be sued 訴訟能力
Different actions require different levels of mental capacity. The more complex the act or decision, the greater the level of capacity required.
不同的行為要求不同的精神能力標準。行為或決定越複雜，能力標準的要求越高。
A natural person who manifests assent to a transaction has full legal capacity to incur contractual duties. But prisoners had limited contractual capacity.
自然人能夠表明統一交易的，具有完全的法定能力來承擔合同義務。但是，犯人只具有有限的訂約能力。
The legal capacity required to make a will ("testamentary capacity") is lower than that required to enter into a valid contract.
做出遺囑的法定能力（遺囑能力）低於籤署有效合同所要求的法定能力。
ability, capability, capacity, faculty
這幾個詞的共同含義是能力。
ability 指比較全面的能力。如：He is a man of ability.
capability 指某方面的才幹或技能。如：The man has great capabilities in playing the piano.
capacity 側重於領會的能力。如：This book is within the capacity of ordinary readers.
faculty 指智力。如：He has a great faculty for learning languages.