0 New HSK word(s):

0 Old HSK word(s):

核潜艇 [he2 qian2 ting3]

Atom-U-Boot, nuklearangetriebenenes Unterseeboot (S)
潜水艇 [qian2 shui3 ting3]

U-Boot, Unterseeboot
潜艇 [qian2 ting3]

U-Boot (S)Unterseeboot (S)