He has a dry sense of humor and often cuts a joke in the middle of the conversation.这人有点冷幽默，常常在谈话中冷不防地插上一个笑话。字里行间dry干燥的。但是， dry sense of humor就不是“干燥的幽默感”了。这个短语，指的是那种“说起笑话来不加噱头，不用夸张