12 Old HSK word(s):

☊脑袋 ** B

☊脑子 ** B

☊脑筋 ** C

☊头脑 ** C

☊大脑 ** C

☊伤脑筋 ** C

☊电脑 ** C

☊恼火 ** D

☊首脑 ** D

☊探头探脑 ** D

☊烦恼 ** D

☊苦恼 ** D

苦 bitter / hardship, suffering

恼 angered, filled with hate

Hsk Characters: 脑 * 恼 *

HSK -Characters and beyond:

Gb	Big5	Eng	Rad	Mega	Triple	Multilingual
垴 57B4 +	堖 + +	small, head shaped hill, used in place names	土	垴	Earth 垴 (AF_GEHIRN) nao3	+
脑 8111 +	腦 + +	brain	肉	垴	Flesh 垴 (AF_GEHIRN) nao3	+
恼 607C +	惱 + +	angered, filled with hate	心，忄	垴	Heart 垴 (AF_GEHIRN) nao3	+
瑙 7459 +	瑙 + +	agate / cornelian	玉	囟	Jade 囟 (SCHÄDEL) nao3	+

Korean:

5 NHSK word(s): 电脑 * 1 dian4 nao3computer/ CL:臺|台[tai2] 烦恼 * 4 fan2 nao3agonize/ agony/ annoyance/ upset/ vexation/ worries 脑袋 * 5 nao3 dai4head/ skull/ brains/ mental capability/ CL:顆|颗[ke1];個|个[ge4] 恼火 * 6 nao3 huo3to get angry/ irritated/ to annoy/ to aggravate/ annoying 伤脑筋 * 6 shang1 nao3 jin1knotty/ troublesome/ bothersome

KOREAN6000 word(s):

KOREAN 2500 New HSK words):

KOREAN Sentence(s):