to catch (a disease); to get (a bad habit)

chromosome

to dye

to catch an illness; to get infected with a disease

to dip a finger (idiom); fig. to get one's finger in the pie; to get a share of the action; abbr. for 染指於鼎|染指于鼎

to infect; infection; (fig.) to influence

(lit. and fig.) to pollute; to contaminate

to infect; contagious

to have an affair with sb

(idiom) untainted by even a speck of dust; spotlessly clean; (of a person) honest; incorruptible