圖像加註文字，3月1日，伊朗民航局發言人表示，伊朗全國空域關閉，「直到進一步通知」。沒能離開杜拜的蔓蔓則只能等。「我們到底該躲去哪裡？是要待在飯店就好，還是可以躲防空洞之類，其實沒有人跟我們說該怎麼做。」
fn main() - int {
，更多细节参见新收录的资料
The first problem is wasted work again. If cell A1 references B8, and cell A2 also references B8, then when we update all the cells, we still only want to evaluate B8 once, and then reference it in both A1 and A2. We can do this through caching — whenever we calculate a cell’s value, we store it somewhere, and then all future cell references can used the stored value instead of recalculating.，这一点在新收录的资料中也有详细论述
有一说一，必须造福一方，这是为政之道。。新收录的资料对此有专业解读
永恒歌单骨灰盒（Eternal Playlist Urn）