1. The new study took place in Dar es Salaam.这项新的研究是在达累斯萨拉姆进行的。youdao2. Shake the hands, salaam, you are my good friend!握握手，敬个礼，你是我的好朋友！youdao3. Shake the hands, salaam, you are my good friend!握握手，敬个礼，你是我的好朋友！youdao