to reciprocate with material assistance
有翅决明 cassia alata 有无相通 mutual exchange of assistance (idiom); to reciprocate with material assistance 玉米花翅飞虱 peregrinus maidis ..
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to reciprocate with material assistance
以物质援助作为回报
以上为机器翻译结果，长、整句建议使用 人工翻译 。