当你远离朋友和家人的时候，你可以通过信件，明信片，短信和电话与他们保持联系。
When you're far from friends and family, you can keep in touch with them by letters, post cards, short notes or phone calls.
当你远离朋友和家人的时候，你可以通过信件，明信片，短信和电话与他们保持联系。
When you're far from friends and family, you can keep in touch with them by letters, post cards, short notes or phone calls.
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