sometimes/ˈsʌmtaɪmz/
adv.有时，时不时地，间或I sometimes think that it is a great mistake.我有时想这是一个大错。
Sometimes I help my mother in the house.有时候我帮助妈妈做家务。
Sometimes the 'classroom' is a Mississippi riverboat.有时候，教室就在密西西比河上的汽船上。
Sometimes, when Billy is sick, his older brother has to deliver the newspapers.有时毕利病倒了，他的哥哥就得去送报纸。