zuàn xīn
to sneak in
to infiltrate
to be piercingly painful
to be unbearable (of pain, itch etc)
zuān xīn chóng
boring insect
snout moth's larva (Aphomia gullaris or Plodia interpuncuella or Heliothus armigera etc), major agricultural pest
zuān xīn
to sneak in
to infiltrate
to be piercingly painful
to be unbearable (of pain, itch etc)