词汇：ballast

n. 压舱物，压载物；道渣，碎石

相关场景

Anatoly glances at the bottom sonar and makes a ballast adjustment.
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Get that beer in you for ballast.
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Mayonnaise has more ballast.
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Level 5:
28.ballast A.爆炸 B.虚夸 C.导火索 D.压舱物 E.不认识.
>> 新东方英语词汇量测试及答案
28.A.镇流器。爆炸 B虚夸 C导火索 D压舱物 E不认识.