| 词汇 | plunge |
| 词根词缀 | 词源： plunge (v.) c.1380, from O.Fr. plungier (c.1140), from V.L. *plumbicare "to heave the lead," from L. plumbum "lead" (see plumb). Original notion perhaps is of a sounding lead or a fishing net weighted with lead. Fig. use in take the plunge "commit oneself" is from 1845. Plunger as a mechanism is from 1777. Plunging neckline attested from 1949. 词根记忆： v. (into)(使)投入,(使)插进,陷入;猛冲The hungry drunk plunged a trunk of lungs into the tunnel under the channel.饥饿的醉汉把一大箱肺投进了水渠下面的隧道. |
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