A strong, nonpersistent, yellow, crystalline herbicide, C12H12Br2N2, used to control water weeds.
杀草快一种强力非持久性、黄色、晶状除草剂C12H12Br2N2，用于控制水生杂草
Research of the Water Weeds Growing Character of the Summer Mountain Resort;
承德避暑山庄水生杂草生长特性的调查研究
"Other water weeds are being used to make paper, furniture and building materials, to clean waste water and to provide food for people."
另一些水生杂草正被用来造纸、制作家具、生产建筑材料、清洁废水或给人提供食物。
A Study on the Dynamic Occurrence and Water Physio-Ecological Characteristics of Turf Weeds;
草坪杂草发生动态与水分生理生态特征研究
a wanton growth of weeds
杂草的丛生 [茂密]
annual weedy grass used for hay.
一年生杂草用作干草。
Comparative Study on Characteristics of Water Physiological Ecology of the Main Turf-weed Populations;
草坪主要杂草种群水分生理生态学特征的比较研究
Annual broadleaf and grass weeds are major problems.
主要杂草是一年生阔叶杂草和禾本科杂草。
Studies on Controlling Pest and Weeds by Integrated Rice-Duck Farming Technology
有机水稻生产稻鸭共作防治杂草、害虫的研究
(of land)full of or likely to produce many weeds
（指土地）长满杂草的,易生杂草的
Weeds have overrun the garden.
花园中杂草蔓生 [丛生] 。
Improvements in drainage and fertility levels are in themselves methods of reducing the incidence of some of these weeds.
改进排水和肥力水平本身就是减少某些杂草生长的方法。
Experiment in the Rice Field Weed Control by Oxadiazon 12.5% EC
12.5%?草酮乳油防除水稻田杂草试验
rank grass, ivy, etc
蔓生的杂草、 常春藤等
hoeing the lettuces
锄去生菜周围的杂草.
If the brain sows not corn, it plants thistle .
脑里不种粮，必定生杂草。
Grass and weeds grew rank over the whole cemetery.
整片墓地杂草丛生，
rank soil, earth, etc
杂草滋生的土壤、 土地等