| 词汇 | propulsion |
| 词根词缀 | 词源： 1611, "expulsion," noun of action formed from pp. stem of L. propellere "to propel" (see propel). Meaning "act of driving forward" first attested 1799. 词根记忆： n. 推进(力)(pro向前+puls+ion→推进;动词;propel)[pel,puls=drive,push,表示"驱动,推"] n. 推进(propulse推进,pro+pulse冲动)[-ion①表名词,"动作或状态"②表示"某种物,用品"] |
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