Firmest
firm（坚固的, 坚牢的）的最高级形式
🗣️ 情景例句
He has enormous funds at his command.
他掌握着巨额资金。
There's no sense in going by boat when the plane is just as cheap and much quicker.
既然乘飞机和坐船一样便宜而且还快得多，那么就没有理由去坐船。
During the day, sleep comes in snatches.
白天是忽睡忽醒，