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- Gills tend to be used by aquatic species while the more advanced terrestrial species use tracheal systems. 鰓被用在水產(chǎn)種類(lèi)，而進(jìn)化較好陸生種類(lèi)是用氣管（呼吸）。
- Closed Tracheal Suction Catheter 密閉式吸痰管
- Closed tracheal suction system 密閉式吸痰
- The Ultrastructure of the Tracheal System in Insect 昆蟲(chóng)氣管系統的超微結構
- He closed the deal successfully and was home free. 買(mǎi)賣(mài)成交了，他松了一口氣。
- People say that the tiger is still lurk close to. 人們說(shuō)那只老虎還躲在附近。
- The boss readily closed with the offer. 老板馬上接受了這個(gè)報價(jià)。
- Have you closed the gate and windows? 你把門(mén)窗關(guān)嚴實(shí)了嗎？
- He closed his speech with a funny joke. 他用一則有趣的笑話(huà)結束了演講。
- That oyster closed up its valves. 那個(gè)牡蠣把殼合攏起來(lái)。
- She is buying a flat close to her office. 她正在購買(mǎi)一套靠近她辦公室的單元房。
- She's always been very close about her past life. 她對自己過(guò)去的生活一直守口如瓶。
- For the umpteenth time close the door quietly. 我告訴過(guò)你好多次要輕輕地關(guān)門(mén)。
- tracheal system 氣管系,氣管系統
- The Waterloo line is closed for repair. 滑鐵盧鐵路線(xiàn)因維修關(guān)閉。
- This project has been closed up. 這個(gè)項目已終止了。
- This road is closed to motor vehicles. 這條路機動(dòng)車(chē)不準通行。
- Nuclear physics is a closed book to me. 核物理學(xué)是我完全不懂的一門(mén)學(xué)科。
- Nuclear physics is a closed book to most of us. 我們大多數人對原子核物理學(xué)一竅不通。
- He closed his ears to my suggestion. 他對我的建議充耳不聞。
