Kitimine
酮亚胺(类)
🗣️ 情景例句
Relax! Be patiend and enjoy yourself.
放松点！要有耐心，并让自己快乐！
Knowledge advances by steps and not by leaps.
知识只能循序渐进，不能跃进。
planes, or land vehicles----for it is something in between a boat and an aircraft.
飞机，或是陆上交通工具，因为它是介于船和飞机之间。