英文文法問題： Hong Kong halts use of Pfizer vaccine, cites defecti... 『“Fosun has promised to carry out an immediate investigation so they are going to approach the manufacturer in Germany to look into their plant,” Chan said. 』
所以要去查場的they是誰？their plant是誰的plant？這代名詞太多我不敢確定…… Hong Kong to resume Pfizer shots after packaging def...