单词	siliceous tufa
释义	siliceous tufa 硅华
随便看	direct sum representation direct sum resolution direct sums direct sum set direct-sum topological space direct sunlight direct sunshine direct supervisor direct supply direct support direct support artillery direct support fire direct supporting artillery direct supporting fire direct supporting fires direct support maintenance direct supports direct surcharge direct surface runoff direct surveillance direct survey direct suspension direct-suspension construction direct switching in direct switching-in 存存1 存2 存3 存4 存亡安危存亡未卜存亡绝续存亡继绝存亡续绝向当儿向往向心力向慕向日向日性向日葵向日黄向明向晓