名词期刊; 杂志 形容词周期的，定期的; 时常发生的; 定期发行的，期刊的
形容词
1. I expect regular periodical reports from you.
我期待你定期汇报。
1. （尤指学术）期刊
Periodicals are magazines, especially serious or academic ones, that are published at regular intervals.
periodical的意思
e.g. The walls would be lined with books and periodicals.
这几面墙会摆放书籍和期刊。
e.g. ...a monthly periodical.
月刊
2. 间发性的；定期的；周期的
Periodical events or situations happen occasionally, at fairly regular intervals.
e.g. She made periodical visits to her dentist.
她定期去看牙医。
e.g. ...periodical screening for cancer.
定期进行肿瘤检查
1. （尤指学术）期刊
Periodicals are magazines, especially serious or academic ones, that are published at regular intervals.
periodical的意思
e.g. The walls would be lined with books and periodicals.
这几面墙会摆放书籍和期刊。
e.g. ...a monthly periodical.
月刊
2. 间发性的；定期的；周期的
Periodical events or situations happen occasionally, at fairly regular intervals.
e.g. She made periodical visits to her dentist.
她定期去看牙医。
e.g. ...periodical screening for cancer.
定期进行肿瘤检查
