基本解釋adj.第一線的(最優(yōu)良的；頭等的；最重要的)同根派生 firstline相關(guān)詞英漢例句Conclusions CTPA could he used as the firstline approach for diagnosing acute PTE because of high sensitivity, reliability along with promptness and convenience. 結(jié)論CTPA對急性PTE的診斷陽性率較高，是診斷PTE的有傚手段，具有無創(chuàng)、快捷、方便、可靠等特點，可作爲一線檢查手段。4 echo "First line is $firstline; second line is %24secondline" %23 不能工作.firstline更多例句