坐等一个人空等一颗心
[zuò dĕng yī gè rén kōng dĕng yī kē xīn]
Waiting In Vain means to wait fruitlessly for someone important. It conveys the sentiment of waiting eagerly and faithfully but being faced only with absence and void, often leading to feelings of sadness or melancholy over unmet expectations and unanswered calls