Mesopneumon
[醫] 肺系膜, 胸膜連系
??? 情景例句
which we made clear at the beginning of the negotiation.
關于這一點，我們早在開始談判時期就講明了。
To teeter-totter
玩蹺蹺板
Just ahead of us there was a huge fissure.
離我們不遠處，出現一個大裂縫。