aquatic weed

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