The professor is drudging at dictionary-compiling.教授正在辛苦地编字典。Compiling a dictionary is an awful sweat.编字典是一项非常艰苦的工作.The professor is drudging at dictionary - compiling.教授正在辛苦地编字典.to assist in compiling a dictionary参加(或帮助...
The engines were fired with coal and needed water to keep the steam up.这些发动机烧煤，并且需要加水以不断产生蒸汽。The treaty will steam up trade between the two countries.条约将促进两国之间的贸易.My breath had begun to steam up the windscreen.我的呼吸使挡风玻璃布...
我学会了如何称出袋装种子的重量。I learned how to weigh out packages of seed.正如我们所说，科学家正在试验努力寻找让种子的生命力更加延长的方法。Scientists are experimenting to find ways to ensure the viability of seeds for even longer periods of time.乙醛酸循环体发现于油脂种子的贮藏组织中....
She knew that her efforts to feign cheerfulness weren't convincing.她明白自己强作欢颜是瞒不了谁的.Cheerfulness is the best promoter of health.快乐最利于健康。Cheerfulness doesn't always imply happiness.快活并不总是意味着幸福....