The free version is ideal for basic spelling and grammatical mistakes, but it does not correct advanced writing issues.
How much turbulence can an airplane bear? Every year, the question is asked and answered by a group of Air Force and NOAA pilots and researchers known as the hurricane hunters. The initiative began, unofficially, in 1943, when Lieutenant Colonel Joseph Duckworth flew into the eye of a hurricane near Galveston, Texas. Duckworth made his flight on a dare, but the programs have since taken on a more serious role: to report on hurricanes as they develop and to study their inner mechanics. Last year, Joshua Wadler, a hurricane hunter and a meteorologist at Embry-Riddle Aeronautical University, in Florida, went through the turbulence data from every NOAA hurricane flight since 2004, and two infamous ones from the nineteen-eighties. He measured how much each flight was thrown around along six axes of motion: roll, pitch, yaw, surge, sway, and heave. (The words alone can induce vertigo.) Then he made a list of the bumpiest flights ever recorded.
。业内人士推荐同城约会作为进阶阅读
中国互联网很久没这么热闹过了。如此一幕，不禁让人想起多年前互联网巨头发起的红包大战。
Spaniard’s stance could complicate Ryder Cup place
queue.put_nowait, (old_value, new_value)