Some things that everyone wants to do cannot be portably done.

　　有些人們非常希望實(shí)現的事情卻不可移植。

　　It's occasionally desirable to perform some sort of task beyond the scope of what can be done portably in make.

　　有時(shí)候可能還需要執行一些make中沒(méi)法移植的內容。

　　This results in a difficult situation: fairly commonly used features, such as including other files in a makefile by reference, cannot be done portably!

　　這就導致出現了一種復雜的情況：很常用的一些特性，例如在makefile中通過(guò)引用來(lái)包含其他文件，都不能很好地移植！

　　The portable and pneumatic seeder is small in volume and is capable of being used portably and realizing the farmland seeding in hillside or foothill areas.

　　本實(shí)用新型體積小、可以手提使用，能夠在山坡或丘陵地帶的實(shí)現農田播種。