鎖 - chain, irons, connection

chain; series; connection

economic blockade; embargo

chain; chains

national isolation; closing the country (to foreigners)

closing; closure

blockade; lockdown; sealing off (an area)

streptococcus

chain reaction

chain with a weight at the end (usu. a weapon)

streptococcus

Streptococcus viridans

congenital bile duct atresia