And most of these levers have popularity problems, and if there is a lever you don't like the use of, well please do bear in mind that means you need even stronger effort on the other levers.
大部分这些选择都有“偏爱“的问题， 如果你不喜欢某一选择的使用， 那你要切记，这意味着你需要 在其它方面上花更大的力气。