backward and forward
01
前后, 彻底
in a manner that includes all necessary parts, elements, or aspects of something
Dialect
American
American
Idiom
例子
After years of studying the language, she understands French literature backward and forward.
经过多年的语言学习，她对法国文学了如指掌。
He is familiar with the financial market backwards and forwards, so he can predict trends accurately.
他对金融市场了如指掌，因此可以准确预测趋势。
例子
She paced backward and forward, deep in thought.
她来回踱步，陷入沉思。
The swing moved backward and forward in the breeze.
秋千在微风中前后摆动。
