Article in English: Since you won't be seeing each other in person, it's important to establish and maintain an emotional connection as often as you can. These don't always have to be long, in-depth conversations. Frequent communication, no matter how minor, will show that you care enough to put in the time and effort into the relationship and it’s easier to keep up to date with each other’s lives. If you allow large (days at a time) gaps to pass by, your everyday experiences fade into the background, and you will have to start from scratch every time you speak.  Learn your partner's preferred method for communication. Be sure to try a variety of technologies to see what works best for you both. You may try texting, emailing, or video-calling to keep up to date with little daily details of your lives. Work around your schedules. If you know you're going to be too busy to communicate, let your partner know in advance and try to stay in contact as best you can. If you're not as busy as your partner, remain flexible and focus on something of interest to you. Don't feel as though every conversation needs to be a thoughtful discussion about your relationship, hopes, or dreams. Instead, focus on the little things that couples who live together would, such as grocery shopping, doing chores around the house, or redecorating. This gives the feeling of creating a home together, something you both can look forward to. Talking about the boring or mundane parts of your day can also foster connection and interdependence, the foundation of relationships. Try to make the time to visit each other as often as possible or as often as your budget permits. You need to see each other in person at every opportunity. Make a regular visiting schedule or at least  make plans for the next visit as soon as each one ends. Face-to-face communication is just as important as having relationship satisfaction, commitment, and trust.  Create your own rituals around your visits, like eating at a favorite restaurant, enjoying a quiet night together at home, or...

Summary in Chinese:
保持联系。 多聊一点日常细碎。 多点探望。 了解彼此。 记住，他／她也只是普通人。 即使存在着距离，也要给予对方足够的支持。 信任。 投入。 不要因为对方说的话／做的事生气或者伤心而无理取闹。