cannonball
n.炮弹
难易程度:
cannonball为短语/超纲词汇
词形变化:
动词过去式:cannonballed 过去分词:cannonballed 现在分词:cannonballing 第三人称单数:cannonballs
cannonball
n[C]
a heavy iron ball fired from a cannon
a heavy iron ball fired from a cannon
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