casa1363007
最常用的是 regular (adj.)/regularly(adv.)/regularity(n.)她定期前来为我们照看婴儿。 She regularly baby-sits for us. 他们定期会面。 They meet with great regularity. 所有汽车都需要定期检修. All cars require servicing regularly. 职音乐教师定期到校授课. Peripatetic music teachers visit the school regularly. 内阁定期开会. The Cabinet meets regularly.
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