If an alert is not issued when it should be, however, the result can be a mid-air collision.
而如果在必要时未能发出预警，其结果就可能是空中撞机。
So I suggest that there should not be too many TV advertisments. The advertisments which will be issued must be approved by the Industrial and Commercial Bureau.
因此我建议不应当有过多的广告，发布广告必须经过工商局的批准。
The FDA recently issued a warning stating that diclofenac should not be used by people for pain in the time period surrounding heart bypass surgery.
美国食品药品监督管理局日前发出警告，指出处于心脏搭桥手术围手术期的患者不可使用双氯芬酸缓解疼痛。
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