单词	semiannual
释义	sem·i·an·nu·al (sĕm′ē-ăny-əl, sĕm′ī-) adj. Occurring or issued twice a year. sem′i·annu·al·ly adv.
随便看	sickle feather sicklemia sicklily sickliness sick list sickly sickness sicko sickout sick pay sickroom sic passim "Sid." Siddhartha Siddons siddur side side arm sidearm sideband side band sidebar sideboard sideburns side by side

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。