Planet x
未知行星；冥外行星
🧩 词语组成解析
🗣️ 情景例句
Remember to lock your door and windows when you leave the house.
出门前记得锁好门窗。
A valiant man's look is more than a coward's sword.
勇士的神色胜过懦夫的刀剑。
The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour.
杰出的赛车选手马尔科姆。坎贝尔爵士是第一个以每小时超过300英里的速度驾车的人。