often和usually能不能与 once a week 用在一个句子中?

often和usually能不能与 once a week 用在一个句子中? 与how often do you watch tv?和what do you usually do on weekend?意思相同的句子? often与usually的区别? often与usually放在句中的变化He often swim on sunday.He usually swim on sunday.两句话在意思上有什么区别吗? often和usually的区别 usually 与often 哪一个频率更大? usually和often有什么区别 often和usually有什么区别、 usually和often有什么不同? usually 和often 用法上的区别? often和usually意思相同吗如题 英语作文 what do you usually do on weekends 70单词我要的是作文，70个单词左右，有sometimes，usually和often在里面 often和usually frequently 区分often和usually freguently 的使用?区分? often和usually那个频率高,有人说是often,有人说是usually?到底是哪一个? on与at的区别What do you usually do on the weekend?和What do you usually do at the weekend?ON与AT的区别 often和usually和sometimes的相同点和不同点, usually和often和always有什么不同啊 在英语中“usually”和“often”怎么区别