| 释义 |
〔command〕Students were instructed to submit their essays before the end of the term.在这学期结束前，学生被命令提交他们的小品文。〔pluperfect〕The pluperfect tense, formed in English with the past participle of a verb and the auxiliaryhad, as had learned in the sentence He had learned to type by the time the semester was over. Also called past perfect 过去完成时：过去完成时态，在英语中由一个动词的过去分词加助动词had 构成，如 had learned 在 He had learned to type by the time the semester was over（在那个学期结束之前他学会了打字）一句中 也作 past perfect |