Their IQs are off the chart, gushes a former colleague of some of them.
他们的智商无法计量。其中几人的一位前同事略显夸张地说。
know better than to:不应该
know a thing or two about sth.对某事略知一,二 | know better than to...不应该... | laundry detergent洗衣剂/粉