For much of the past year, President Bush campaigned to move Social Security to a saving-accountmodel, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. 这里的trading如何翻译？
If it had contented our pristine ancestors to dwell in caves orto lead
their nomadic life, they would have remained some mere vagabond creatures.老师字典短语是lead a ...life，为什么lead their life这种形式也存在，不用复数嘛？
Not only is the advent of bookless or largely bookless libraries too
large and powerful a change to be forestalled, it also offers too many real
advantages for it to be considered a tragedy.这里的for it如何分析?
...arted volunteering at
the Monterey Bay Aquarium in California. I was upset to learn that many sea
animals eat plastic garbage, ___57___ (think) it is food.I
decided to do something ___58___ (educate) people about this problem. I held
presentations at schools to teach kids about plastic waste. I want...
The
manner in which they spoke of the Meryton assembly was sufficiently
characteristic. Bingley had never met with pleasanter people or prettier girls
in his life; every body had been most kind and attentive to him, there had been
no formality, no stiffness; he had soon felt acquainted with all the ...
...etween coffee and suicide, and found that coffee drinkers were less likely to kill themselves.近来的一些研究，注意到咖啡和自杀之间的关系，研究发现，喝咖啡的人比较少有自杀倾向。疑问：在一般性的句子中，如何判断介词是和前面的动词结合...
...nite variety of expressions which, whilst having in themselves no likeness
to what is in our mind, allow us to disclose to others its whole secret, and to
make known to those who cannot penetrate it all that we imagine, and all the
various stirrings of our soul"1. 求老师分析下这个句子结...
If you are a real tourist, you probably do not stay long enough for this phase to wear off but go on to the next new location or experience.句中 stay long enough for this phase to wear off 的 for 是表示“为了”还是“对……”的意思？to wear off 是不定式做定语吗？
1.They are not designed for students to interact with the material in depth but designed to be graded easily to accommodate such a large number of students.怎么翻译?2.Live sessions are infrequent and are often scheduled during the middle of the day when students have toattend other classes or w...
...这个句子：Such large impacts beat rock to temperatures well above 600 degrees Celsius---high enough to erase any magnetic field that metallic particle within the r...
练习册阅读题上有个句子：Bad weather for the time of the year.（能翻译一下吗？）但上面有一道选择题是：It's the best weather ____ the time of the year.正确答案却是选 at 而不是 for！可是为什么前面的用 for 后面的用 at？什么时候用 at the t...