And when experimenters record the time it takes game players to read "aggressive" or "non-aggressive" words from a list, can we be sure what they are actually measuring?
The concentration of carbon dioxide in the atmosphere has reached a record high, according to the latest figures released by an internationally regarded measuring station in the Arctic.
根据设在北极的一个世界公认的测量站最新公布的数据，大气中的二氧化碳浓度已经创了新高。
3
Measuring in at over 13 feet long, this lungfish beat out the prior record-holder, an 11.5-foot long lungfish from Africa.