记忆方法
记忆“annul”的方法可以是将它与“ann”和“ul”组合。想象一个时钟（ann）即将被一个力量（ul）取消或撤销（annul）。这种情境可以帮助你记住单词“annul”的含义是取消、使无效。
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中文词源
annul 废除
an-,去，往，-nul,零，词源同nil,零。
英语词源
- annul (v.)
- late 14c., from Old French anuller (13c.) or directly from Late Latin annullare "to make to nothing," from Latin ad- "to" (see ad-) + nullum, neuter of nullus "nothing" (see null). Related: Annulled; annulling.
权威例句
- 1. The effect of the statute was to annul this covenant.
- 但州法规废除了这一契约.
- 2. They have the power to alter or annul inappropriate decisions of their own standing committees.
- 有权改变或者撤销本级人民代表大会常务委员会不适当的决定.
- 3. OBJECTIVE To identify the compositions of volatile oil from Youyang Artemisia annul.
- 目的鉴定酉阳青蒿挥发油的化学成分.
- 4. It has upon it a stain that technology cannot annul or override.
- 它带来的污点是科技无法清楚,不能撤消的.
- 5. To revoke or annul ( a decision or decree, for example ).
- 撤消撤消或取消 ( 例如一个判决或法令 )