He played a supplementary role for the plot.
他在小说中只起情节铺垫的作用。
Nevertheless, foreign aid can only play a supplementary role.
但是，无论如何，外援只能起辅助的作用。
Conclusion GH may play a supplementary role in infection therapy, but further research is needed.
结论GH在感染的治疗中有一定的辅助作用，但仍需进行深入研究。
Conclusion GH may play a supplementary role in infection therapy, but further research is needed.
结论GH在感染的治疗中有一定的辅助作用，但仍需进行深入研究。
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