A: I wonder why he is always so serious about the business. B: As to the business, he often cuts loose from old ties. -我想知道他为什么对公事老是如此一本正经。 -关于公事，他经常是六亲不认。
Morley: Can I walk around the house to take a look? Kathy: Sure, my grandma and I will accompany you. Morley: What's that big hole in the middle of the courtyard? Kathy: That's an old well. Grandma says it still has water in it. Morley: I'd hate to fall in that. Kathy: Your ghost would never find its way out. Morley: Hey, I'd be just like the ghosts in those Japanese horror movies. Kathy: Speaking of ghosts, let's check out the family temple.
No dengue vaccine is currently available. Prospects for reversing the recent trend of increased epidemic activity and geographic expansion of dengue are not promising. In recent years public health authorities have emphasized disease prevention by mosquito control through community efforts to reduce larval breeding sources. Although this approach will probably be effective in the long run, it is unlikely to impact disease transmission in the near future.
