托福写作：写作时必备抽象词（12）
Mechanism用法：①In a machine or piece of equipment, a mechanism is a part, often consisting of a set of smaller parts, which performs a particular function.
② A mechanism is a special way of getting something done within a particular system.
例句: Plants are subject to attack and infection by a remarkable variety of symbiotic species and have evolved a diverse array of mechanisms designed to frustrate the potential colonists. (1996.01)
③A mechanism is a part of your behaviour that is automatic and that helps you to survive or to cope with a difficult situation.
Meditate
用法：① If you meditate on something, you think about it very carefully and deeply for a long time.
② If you meditate you remain in a silent and calm state for a period of time, as part of a religious training or so that you are more able to deal with the problems and difficulties of everyday life.
例句: I was meditating, and reached a higher state of consciousness.
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