In some species of cricket, the number of chirps per minute used by the male to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving as an approximate thermometer. 这个是个错句。是possibly的用法错误。可是possibly 的正确的用法是什么样才对呢。
A study of food resources in the North Pacific between 1989 and 1996 revealed that creatures of the seabed were suffering because food supplies were dwindling, possibly as a result of an increase in sea surface temperatures during the same period.