这种忠于职守的精神是难以取代的。

That loyalty is hard to replace.

youdao

辐射育种既是常规育种的重要补充，又是常规育种难以取代的手段。

The radioactive breeding is not only the important supplement of the conventional breeding, but also the method which the conventional breeding could not substitutes.

youdao

我不认为是难以取代的液晶，不要用力地把事情，并不急于采取轻松。

I don't think replacing the LCD is hard, don't force things into place, no rush and take it easy.

youdao