primaryadj.主要的；最重要的；基本的；最初的; 短语 primary care最初治疗，初级治疗； primary cell一次电池，原电池 His misunderstanding of language w...
account for对…负有责任;Two things account for its occurrence. lead to 导致;A poor diet will ultimately lead to illness. result in 导致; Compulsi...
时间的单词time， hour； 相关词汇 上课时间 school hours; 时间与空间 time and space; 妥善地支配时间 apportion ones time; 拖延时间 spin out time 那项...
