太陽黑子周 tài yáng hēi zǐ zhōu

DEFINITIONS

  1. sunspot cycle

CHARACTERS

太 tài
HSK 1
very, too, much; big; extreme
陽 yáng 'male' principle; light; sun
黑 hēi
HSK 2
black; dark; evil, sinister
子 zǐ
HSK 1
offspring, child; fruit, seed of; 1st terrestrial branch
周 zhōu
HSK 3
Zhou dynasty; circumference