性病: a venereal disease

important, weighty / valuable

importance, weight / value

prevention or protection, especially from disease or natural disasters

prevent disease or suffering due to natural disasters

a sexually transmitted disease; a venereal disease

渺: boundless (usually in reference to water, such as the sea); extremely tiny / 眇: small, minor, trifling

秒: seconds (duration)

秒: a second (the unit of time) / 廟, 庿: a mausoleum; a kind of small shrine; the main building of a palace housing the room where court is held / 鋲: a tack; a thumbtack or pushpin; a rivet; a hobnail

慢性病: chronic disease