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...
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....