Translation of Konvoi

Dear Arnold, please send me David's contact details. I will arrange a meeting and present him the machine, so that he will know how to operate it properly. Thanks again and all the best.
And others are not, some of us are speaking (too) freely about it, without paying attention to what they really say. Some of us know how to restrain because we know that these feelings are malicious.
On the way we visited many small hill tribe villages. The walk was through green, wet rice fields. We really enjoyed it. Our guide explained us about the region and taught us some Vietnamese.