by means of; through; via; to adopt; to pass through; to get through; to switch over[cedict]
肉眼
ròu yǎnㄖㄡˋ ㄧㄢˇ
naked eye; layman's eyes[cedict]
检查
jiǎn cháㄐㄧㄢˇ ㄔㄚˊ
inspection; examine[cedict]
已经
yǐ jīngㄧˇ ㄐㄧㄥ
already[cedict]
产生
chǎn shēngㄔㄢˇ ㄕㄥ
to arise; to come into being; to come about; to give rise to; to bring into being; to bring about; to produce; to engender; to generate; to appear; appearance; emergence; generation; production; yield[cedict]
红斑
hóng bānㄏㄨㄥˊ ㄅㄢ
erythema (pathol.); rash in red patches[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]