translation.en: EM: We're actually, we've been making some good progress recently with something we call the Grasshopper Test Project, where we're testing the vertical landing portion of the flight, the sort of terminal portion which is quite tricky.
translation.zh: 埃隆·马斯克：实际上我们，我们近期在一个叫做 “蚱蜢测验计划”中取得了不错的进展， 我们在这个计划当中测试了火箭垂直降落的这一个部分， 这个最后的部分相当复杂。