Spontaneus
adj. 自发；自然的
🗣️ 情景例句
Oh, thank you.
啊 ，谢谢。
Have you ever thought about a career in the medical profession?
你曾经在医药专业考虑职业吗？
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。