Spontaneus
adj. 自发；自然的
🗣️ 情景例句
Emergency Assistance, may I help you?
紧急事故救援中心，有什么需要帮助的吗？
Keep that in mind.
记住那件事。
The skins were used for making tents and water containers.
还可以用野牛皮制作帐蓬和装水的容器。