撤銷
cancel;rescind;revoke;invalidate
～訂貨單cancel an order/～處分rescind(or annul)a penalty/～對承受條約拘束之同意invalidate one’s consent to be bound by a treaty/～法令repeal a decree/～決議revoke(or annul)a decision/～命令countermand an order/～通知或文書revoke a notification or instrument/～邀請withdraw an invitation/～職務dismiss a person from his post