重点词汇
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坚固的
stable; infrangible; staunch; consistent; cast-iron; indurative; solid; hard
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要塞
fortress; stronghold; fort; bastion; citadel; garrison
中英释义:
strong fort
坚固的
stable; infrangible; staunch; consistent; cast-iron; indurative; solid; hard
要塞
fortress; stronghold; fort; bastion; citadel; garrison