这一方法与溶胶分析相比过于繁重.This procedure is obviously much more tedious than sol analysis.由固体微粒悬浮在液体中所组成的溶胶叫胶态悬浮体.A sol that consists of solid particles suspended in a liquid is a colloidal suspension.在几个实验中已经研究了污染的大气中气溶胶的产生.The g...
Take your time, don't cut corners and follow instructions to the letter.慢慢来，不要图省事，要严格按照说明去做。She obeyed his instructions to the letter.她分毫不差地遵照他的吩咐去做。Setting fire to the letter, he made her watch it burn.他点火烧那些信时让她看着...
His dogs were inoculated against rabies.他的狗注射过狂犬疫苗。A pedigree pup should have been inoculated against serious diseases before it's sold.纯种狗应该在出售前注射预防严重疾病的针.Disease can be spread by dirty tools, insects, inoculated s...
一只知更鸟在地上啄食面包渣。A robin was pecking at crumbs on the ground.母鸡啄食地上的谷粒.The hen ate the grains of corn on the ground.小鸡在院子里到处啄食.The chicken picked about the yard....