ballasting
['bæləstɪŋ]
n.
压舱材料,道砟材料;
v.
给某物装上压舱物( ballast的现在分词 );
例句:
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The bus rattled and bounced through mud and rain down to the delta, with a hundred fifty-kilo sacks of rice ballasting the rear.
来自NEWYORKER
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Ideally, some heavy brethren in the boat are power-ballasting one side, making the wake kick up a little higher.
来自WSJ