Portlandian
(=Portlandian stage)[地质]波特兰阶
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
Though malice may darken truth, it cannot put it out.
恶意可以遮暗真理，但不能抹杀真理。
giant hovercraft liners could span the Atlantic;
大型的气垫班轮或许能跨越大西洋。