细菌: bacterium, germ...
即可: equivalent to, can then (do sth), can immediately (do sth), (do sth) and that will suffice...
外来: external, foreign, outside...
重叠: to overlap, to superimpose, to telescope, to run together, to duplicate, one over another, superposition, an overlap, redundancy, reduplication (in Chinese grammar, e.g. to have a stroll)...
出事: to have an accident, to meet with a mishap...
起步: to set out, to set in motion, the start (of some activity)...
放过: to let off, to let slip by, to let sb get away with sth...
东道主: host, official host (e.g. venue for games or a conference)...
增: to increase, to expand, to add...
原告: complainant, plaintiff...