concurrencen.
英 kən'kʌrəns | 美 kən'kɝəns
中文n. 同时发生；赞同；合作
词根词源
concurrence (n.)early 15c., from Old French concurrence (14c.) or directly from Medieval Latin concurrentia "a running together," from concurrens, present participle of concurrere (see concur).
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