無症状感染 むしょうじょうかんせん asymptomatic spread (of an infectious disease); silent infection; subclinical infection n Advanced ➥
墨に染まれば黒くなる すみにそまればくろくなる people are formed by their surroundings; walk with the wise and become wise; associate with fools and get in trouble; that which is dyed with ink becomes black exp proverb Advanced ➥