Quaternionic
四元
🗣️ 情景例句
Crash dieting is not an advisable way to lose weight.
疯狂节食可不是减肥的好方法。
How much is it by air mail?
航空信要多少钱？
Can you type this letter for the boss please, Pamela?
请你把这封信给老板打一下可以吗，帕梅拉？