| 单词 | moment |
| 释义 | moment n. 1. a very brief portion of time; an instant. 2. a short period of time (wait a moment) (see also MINUTE(1)). 3. an exact or particular point of time (at last the moment arrived; I came the moment you called). 4. importance (of no great moment). 5. Physics & Mech. etc. a the turning effect produced by a force acting at a distance on an object. b this effect expressed as the product of the force and the distance from its line of action to a point. Phrases and idioms at the moment at this time; now. in a moment 1. very soon. 2. instantly. man (or woman etc.) of the moment the one of importance at the time in question. moment of inertia Physics the quantity by which the angular acceleration of a body must be multiplied to give corresponding torque. moment of truth a time of crisis or test (orig. the final sword-thrust in a bullfight). not for a (or one) moment never; not at all. this moment immediately; at once (come here this moment). Etymology: ME f. OF f. L momentum: see MOMENTUM |
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