Trying to pin down exactly when the contractors would be done remodeling the house , nancy was frustrated by their elusive replies 南希试图使承包商明确表态到底什么时候可完成房子的改建
You will be a little difficult to pin down but there is nothing like a good game of cat and mouse when it comes to love 当爱情来临的时候不要觉得自己受到限制，那只不过是欲擒故纵的小把戏。
Are they related ? we don ' t know , we don ' t have enough evidence to be able to pin down that kind of connection 它们之间有关系吗？我们不得而知，至少我们还没有足够的证据把这两件事牵连在一起。
Now if we pin down the first urdu poet , we should be able to trace down the origins of the language to a fair degree 现在如果我们迫使采取第一urdu诗人,我们应该能追踪在语言下的起源对公正程度。
A new study of genes in humans and chimpanzees pins down with greater accuracy when the two species split from one 美国一项最新的基因研究成果将这两者从同一物种发生分化的时间较之以前变得更为准确了。
Why should one be pinned down by that butterfly word ? of course it had to flutter away and be gone , to be followed by other yes s and no s 这个小宇儿，当然要象蝴蝶似地飘飘飞逝，好让其他的“是”和“不”替上的！
Researchers suspect that food may be a contributing factor in 35 percent of all fatal cancers , but hae had a hard time pinning down likely culprits 研究者猜测食物也许对35的癌症都有作用，但是他们却很难确定罪魁祸首。
Lisa : good start ! you knocked 8 pins down . but you ' re left with a split . it ' s almost impossible unless you can bowl a ufo - ball on this roll 莉莎：好的开始！你打倒了8个球瓶。可是开花了。除非你打飞碟球，否则是不可能的。
Using a pair of giant clippers , the bare - chested chinese man lunges into one of many wire cages on a truck and pins down a yelping dog 一个赤裸着胸膛的中国男人用一对大夹子戳进卡车上很多铁丝笼中的一个，夹住一只呜咽的狗。
Ever since the egyptians started knocking pins down with a ball 5 , 200 years ago , people have been enjoying the fun and social game of bowling 自从埃及人在5200年前开始用球击倒木瓶以来，人们一直很喜爱保龄球这种有趣的社交游戏。
