在离开三个月之后 after an absence of three months
在手术后三个月 in the months following surgery
在三个月后
Three months later
以上为机器翻译结果，长、整句建议使用 人工翻译 。
互相写鼓励信并在三个月后寄出。
Write encouraging letters to each other and then mail them three months from now.
youdao
我将在三个月后出版这本书。
I am going to publish this book in three months.
Mark：“最终交付计划在三个月后，因此契约将持续三个月。
Mark: "Final delivery is scheduled in three months, so the contracts will last three months.
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