The company announced that the initial tests look promising, but they hastened to add that there is still much more testing to be done.公司宣布说初期测试预示前途光明，但马上又补充说还需要做更多的测试。

Let me hasten to point out that these changes will not affect our existing clients.请允许我赶紧说明一下，这些改变不会影响我们现有的客户。