分离

separate; divide; part; split; detach; disconnect; sever; disengage; dissociate; disunite; divorce; isolate; segregate; disassemble; split away; come away; split off; separation; parting; abstraction; detachment; segregation; disjunction; dissociation; disengagement; isolation; discrete; detached; disconnected; apart; parted; disunited; isolated; segregated; unglued; separately; off

有害

harmful; bad; noxious; baneful; baleful; hurtful; malign; maleficent; detrimental; deleterious; pernicious; harm; hurt; damage; impair; jeopardize

细菌

bacterium; bacteria; erm; bacterial