think twice / / 重新考虑
think up / / 发明;设计出
on second thoughts / / 经重新考虑后
take thought for / / 对…担心;对…挂念
throw about / / 到处扔;转向航行
throw away / / 扔掉,抛弃
throw off / / 扔开;匆匆脱掉(衣服)
throw over / / 抛弃(计划等)
throw up / / 抛起;呕出(食物)
tie up / / 束紧,缚牢;包扎