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    仇钺，字廷威，镇原人。初以庸卒给事宁夏总兵府，大见信爱。会都指挥佥事仇理卒，无嗣，遂令钺袭其世职。正德二年，用总制杨一清荐，擢宁夏游击将军。五年，安化王寘鐇及都指挥何锦、周昂、指挥丁广反。钺时驻城外玉泉营闻变欲遁去顾念妻子在城中恐为所屠灭遂引兵入城解甲觐寘鐇归卧家称病以所将兵分隶贼营。锦等信之，时时就问计。钺亦谬输心腹。而阴结壮士，遣人潜出城，令还报官军旦夕至。钺因绐锦、广，宜急出兵守渡口，遏东岸兵，勿使渡河。锦、广果倾营出，而昂独守城。寘鐇以祃牙召钺，钺称病亟。昂来视，钺方坚卧呻吟。伏卒猝起，捶杀昂。钺乃提其首，跃马大呼，壮士皆集，径驰诣寘鐇第，缚之，众遂大溃。举事凡十八日而败。先是，中朝闻变，议以神英为总兵官，而命钺为副。俄传钺降贼，欲追敕还。大学士杨廷和曰：“钺必不从贼，令知朝廷擢用，志当益坚。不然，弃良将资敌人耳。”乃不追。事果定。而刘瑾暱陕西总兵官曹雄，尽以钺功归之，钺竟无殊擢。瑾诛，始进署都督佥事，充宁夏总兵官。寻论功，封咸宁伯，岁禄千石，予世券。八年，大同有警，命充总兵官，统京军御之。钺上五事，中请遣还京操边军，停京军出征，以省公私之扰。尤切时弊，时不能用。钺既至，值寇犯万全沙河。击之，斩首三级，而军士亡者二十余人，寇亦引去。奏捷蒙赉，朝论耻之。十年冬，称疾解营务。卒年五十七，谥武襄。

（节选自《明史·仇钺传》）

    Mark began to introduce the guest speaker to the listeners, but then stopped for a while. He had forgotten her name.
    Barbara hid her valuable things when she went on vacation. When she came back, she couldn't remember where she'd put them.
Perhaps you've had such experiences like these. Most people have. But most of them haven't realized that they have a memory problem. Neither do they know a simple but important fact: Memory can be improved. If you just accept that, the following will show you how.
    First, relax. If you are over worried about something, you'll forget it. If you keep telling yourself that your memory is bad, your mind will come to believe it and you won't remember things. When you forget something, don't follow up with saying like “Oh, my god! I always forget things! ” Such words will have a bad result on you and your memory.
    But relaxing isn't enough. To improve your memory, you'll need to take an active role. Like your body, your memory can be made strong through exercise. Look for opportunities to exercise your memory. For example, if you're learning a language, try to actively remember a lot of new words.
    If you don't take notice of things actively, you won't remember them. So, you can make pictures of what you see in your mind every day. For example, don't just put your keys down! If you want to find them again, make a mind picture of the place where you're putting them.