Weary is one kind of toxicant phenomenon which in the cell the chemical change derivation causes. 疲劳是细胞内化学变化衍生导致的一种中毒现象。
Furthermore, its separate languages have shown a remarkable faculty for derivation by way of prefixes, suffixes and infixes. 此外,它的各种语言还都表现了显著的性能,惯于借用词头,词尾和加词来衍生新词。