重点词汇
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衍生
derive; generate; evolve; develop; originate; spawn
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灾害
disaster; calamity; catastrophe; misfortune; scourge; plague; bane; havoc
中英释义:
derivative disaster
衍生
derive; generate; evolve; develop; originate; spawn
灾害
disaster; calamity; catastrophe; misfortune; scourge; plague; bane; havoc