The word is "ballast." It can be used as a noun, referring to ballast (in ships, railways, or as a metaphor for composure), or as a verb, meaning to load with ballast, to lay ballast, to stabilize, or to steady.
这个单词是"ballast"，它既可以作名词，指压舱物、道渣、镇流器或比喻的沉着；也可以作动词，表示给某物装上压舱物、铺道渣、使稳定或使沉着。
| 单词 | ballast |
|---|---|
| 音标 | [ˈbæləst] [ˈbæləst] |
| 释义 | n.["压舱物，压载物","道渣，碎石","镇流器","<比喻>沉着"] vt.["给某物装上压舱物","给…铺道渣","使稳定","使沉着"] |
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