A:The meeting’s about to start but I haven’t finished my presentation file.
B:Well, why don’t you just quickly finish it?
A:I just don’t have time. Could we postpone the meeting for a couple of hours?
B:The time was fixed upon by the boss. Postpone it? Not a chance. I suggest you get a move on.
A:等下要開會了,可是我的簡報檔還沒做完……
B:那還不趕快趕工?
A:趕工也做不完啊。有辦法讓會議延後兩小時嗎?
B:這可是大老闆敲定的時間啊,想延後,門都沒有。勸你還是趕快完成吧。
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The World Health Organization (WHO) has declared that an outbreak of mpox, a viral infection that spreads through close contact, represents a global health emergency for the second time in two years. WHAT IS MPOX? Mpox is a viral infection that causes flu-like symptoms and pus-filled lesions, and while usually mild, it can kill. Children, pregnant women and people with weakened immune systems, such as those with HIV, are all at higher risk of complications. The WHO declared the recent outbreak of the disease a public health emergency after a new offshoot of the mpox virus, first identified in Democratic Republic of Congo,
COVID-19 簡介: 嚴重特殊傳染性肺炎 (COVID-19) 疫情爆發以來,冠狀病毒 (coronavirus) 成為熱門討論話題。我們利用這機會來了解病毒(virus) 的定義,以及它與細菌 (bacterium) 之間的不同。 和多數為單細胞生物的細菌不一樣,病毒甚至連細胞都不是,是由蛋白質 (protein) 形成的外殼包裹的一段 DNA 或 RNA,是一種類生物,介於生命體及非生命體之間。病毒無法獨立生長,但能感染大部分具細胞結構的生命體,它存活的方式是藉由感染宿主的細胞,再利用它們來自我複製。其形態有螺旋形、二十面體、包膜型等等。冠狀病毒就是因外表有許多突起,看起來像皇冠而得名。 病毒顆粒只有約細菌的百分之一。細菌等病原體無法通過尚柏朗過濾器 (Chamberland filter),但病毒卻可以。因此,1899年,荷蘭微生物學家貝傑林克(Beijerinck) 將這類物質命名為濾過性病毒 (filterable virus)。Merriam-Webster 對 virus 的定義是: any of a large group of submicroscopic infectious agents (超顯微傳染媒介物) that are usually regarded as nonliving extremely complex molecules (複分子), that typically contain a protein coat (蛋白質外殼) surrounding an RNA or DNA core of genetic material but no semipermeable membrane (無半透膜), that are capable of growth and multiplication only in living cells, and that cause various important diseases in humans, animals, and plants 病毒學 (virology),是微生物學 (microbiology) 底下的一個分支,迄今人類已鑑定出超過 6000 種病毒。病毒的傳播方式非常多樣,流感 (flu) 病毒可以經由咳嗽和打噴嚏傳播;諾羅病毒 (Norovirus) 可以通過手、食物和水來傳播;愛滋病毒 (HIV) 則可以通過體液接觸傳播;登革熱 (Dengue fever) 通過蚊蟲叮咬傳播。攜帶病毒的生物載體,如蚊子,稱為 vector (病媒),非生物載體如:水、空氣,稱為vehicle。在通常情況下,病毒感染會引發免疫反應來消滅入侵的病毒。而免疫反應可透過注射疫苗來產生,使接種者能夠對相應的病毒免疫。 抗生素對病毒沒作用,但有些抗病毒藥物已經研發出來,例如克流感
In 2024, the torch won’t have to leave Europe after it is lit in Olympia, Greece. The 2024 Summer Olympics will begin in Paris, France, on July 26, marking exactly a century since Paris last hosted the Olympic Games in 1924. This year’s opening ceremony promises to be a true spectacle: National teams will parade on boats down the Seine River. The Olympic torch will be carried along the river until it reaches the Trocadeoro Gardens, which is across from the Eiffel Tower on the opposite side of the river. Tens of thousands of spectators are expected to line the
Every four years at the opening ceremony of the Olympics, an athlete acting as the torchbearer carries the Olympic torch to the venue. This torch will be used to light the Olympic flame, which will burn continuously until the Games conclude several weeks later. This ritual act is part of a tradition with roots in the ancient past. In many cultures, fire is a symbol of life and knowledge. For example, in the Greek myth of Prometheus, fire is a gift to humankind that allowed civilization to grow and prosper. At the Olympic Games in ancient Greece, a ritual