from time to 到底是偶尔还是常常

from time to 到底是偶尔还是常常 from time to time是“经常”还是“偶尔”频率高还是低? 到底是time flies还是time files 英语语法是否正确?jast now and then=from time to time=at times =sometimes?有时,偶尔 是time to school还是time for school到底是什么啊? from time to time from time to time from time to time from time to time 英译汉：from time to time 到底是from other country还是from other countries对? from time to from time to from time to It takes long time for the stars to come to earth哪错了到底是a long time 还是 to the earth呢?只有一处错啊 look forward to my first time ever in German.这个ever到底是修饰look forward to这个词组还是做后置定语修饰my first time? My family( )going to stay in London for some time.Ais Bare这里到底是指家庭还是指家庭成员, 英汉互译from time to time