制止

stop; prevent; check; curb; suppress; restrain; halt; put an end to; crack down on; prevention; restraint; suppression

疾病

disease; ill; illness; ailment; condition; sickness; malady; disorder; affliction; trouble; complaint; infirmity; -ism; pathological; morbid; diseased; sickly

扩散

spread; diffuse; permeate; spill over; invade; proliferate; percolate; diffusion; contagion; invasive