One tablet will purify a litre of water.一丸即可净化一升水。He thus typified the constant introspection wherewith he tortured, but could not purify himself.他就这样不断地自省,其实只是在自我折磨, 丝毫得不到自我净化.It is used in baking the beehive catalyzer ...
I take wheat and yeast tablets daily to purify the blood.我每天服用干酵母片以净化血液。One tablet will purify a litre of water.一丸即可净化一升水。The old people in the mountains plant lindes to purify the forest.山区的老人种菩提树来净化树林....
all shipshape and Bristol fashion一切都井井有条The house only needs an occasional coat of paint to keep it shipshape.房子只需偶尔粉刷一次就可以保持整洁。I got the house all shipshape while he was away.他不在的时候,我把房子打扫得干干净净,整整齐齐....
I can't draw very well freehand.我徒手画画得不很好.It was a freehand sketch.那是一张手画的图样....freehand sketches.徒手素描Use a template or stencil or simply do it freehand.使用样板或模版，或者干脆徒手画。...
数学试卷和英语试卷很难。The papers in maths and English are very testing.该学位课程将为数学和统计学打下扎实的基础。The degree provides a thorough grounding in both mathematics and statistics.在校时我的数学跟不上。I got left behind at school with the maths....