has started是什麼時態

Once a fit has started there is nothing you can do to stop it.

痙攣一旦發作就無法止住。

He has started a privatisation programme to try and win support from the business community

他啓動了一套私有化方案，以設法贏得商界的支援。

George Granger has started a health centre and I know he's looking for qualified staff

喬治·格蘭傑開辦了一個保健中心，我知道他正在物色合格的'職員。

NASA has started a 10-year search for extraterrestrial intelligence.

美國航空航天局已經啓動了一個爲期10年的尋找外星人的項目。

She is now divorced and, in her usual resourceful way, has started her own business

如今她離了婚。一貫足智多謀的她已開始自己創業。