Permutations
n. （一组事物可能的一种）序列, 排列, 排列中的任一组数字或文字( permutation的复数形式 )
🗣️ 情景例句
It's a piece of cake.
这是小菜一碟。
It was quite good. But it was awfully long.
班机很好，就是时间太长了。
The albatross is the king of the gliders, the class of fliers which harness the air to their purpose, but must yield to its opposition.
信天翁是滑翔飞行的鸟类之王，它能自如地驾驭空气，但必须顺气流飞行。