twice a day是否等于twice per day 能说twice every day

twice a day是否等于twice per day 能说twice every day twice a day twice a day 怎么读 twice a day 中文是什么意思 I brush my teeth twice every day 划 twice 提问 I brush my teeth twice a day对twice提问 He swims twice a day.对twice提问 I brush teeth twice a day.对twice提问 He brushes his teeth twice a day .用twice提问 翻译：take 1 capsule twice per day before meals Tom b_____ his teeth twice a day. I brush my teeth twice a day