你一到那里一定要写信给我。

Be sure to write to me as soon as you get there.

youdao

如果你有任何特殊的担心，一定要写信给我，我将尽力帮助你。

If you have any particular worries, do write to me and I will do my best to help.

youdao

如果你有任何特殊的担心，一定要写信给我，我将尽力帮助你。

If you have any particular worries, do write to me and I will do my best to help.

youdao