Spreing
[法] 根源, 原动力, 动机
🗣️ 情景例句
Tell the truth.
告诉我实话。
Omelets are not made without breaking of eggs.
鸡蛋不打破，蛋卷做不成；不甘愿吃苦，则预期效果达不到。
Don't you usually come to school by bike?
你不是常骑自行车到学校吗？