以二年生草本花卉黑心菊为材料，研究了温室环境对其生长的影响。
The influence of greenhouse environment on the growth of in rudbeckia hirta a biennial herbaceous flower was studied.
过去十年，人们在非洲售出或分发了数百万经杀虫剂处理过的蚊帐，这种蚊帐含有一种长效驱虫剂：合成除虫菊脂。
Insecticide-treated bed nets, millions of which have been sold or given away in Africa in the past decade, have a long-acting repellant, permethrin.
1984年，栾菊杰在洛杉矶奥运会上夺得女子花剑个人金牌。
Women foilist Luan Jujie won the first gold at the 1984 Los Angeles Games.
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