Zi
abbr. 美国本土, 后方地带（等于zone of interior）
🗣️ 情景例句
Is it possible for you to go into it in more details?
能否解释得更详细一点？
Nothing is difficult to a man who wills.
世上无难事，只怕有心人。
The train arrived on time.
火车准时到达。