No matter how the math works out, you persistently view restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.此处的as翻译成什么合适？
compose和comprise的区别。如题为什么选的是comprise而非compose， The communication relation is defined as the channels through which messages are transmitted by people who ____ a social system.
...n and control work to make a series of important instructions, for our win the prevention and control of the war of resistance against disease provides a fundamental guide to follow and action. 这句话怎么改？最大限度保留原意和原词，同时符合语法要求，高手进！
It marked the completion of year one of a two-year masters’ programme; the first philosophy, politics and economics MSc course to be offered part-time by a British university.这里分后后面可以接一个独立主格嘛？还请老师们解答
Hanging bananas also prevents them from bruising on the counter, which they’re more prone to do as they continue ripening.请问这句话中的which是否指代前文的bruising on the counter，如果是的话为何带入从句中却又不太对劲了？ which在从句中作何成分？do指代...
老师好，For many parents in the digital age, battles with
their kids over screen time and devices have become a depressing part of family
life. 这句话的前半句For many parents in the digital age, 是两种状语吧，一个是时间状语“在数字化时代”，另一个For many parents...
原句：Some chicken breeders and poultry groups say the
coronavirus pandemic has led more people in the United States to start raising
their own chickens.老师们，对于这里：has led.......to start raising their own chickens是什么结构，其中又有什么语法在里面?
For the moment,Frank got a funny look on his face,and the tears began to well up in his eyes."It wasn't long after that when my Dad went to sea and never came back."句中的when引导时间状语从句，和前面的it是什么关系？
It happened that Yu Chunshun arrived in Nanjing on the evening of
Dec.25th during his long journey on foot around the country. 请问老师it happened that在这里属于什么用法？
Given that many people's moods are regulated by the chemical action of
chocolate, it was probably only a matter of time before somebody made the
chocolate shop similar to a drugstore of Chinese medicine.
Opera is expensive: that much is inevitableBut expensive things are inevitably the province of the rich unless we
abdicate society's power of choice.We can choose to make opera and other expensive forms of
culture,accessible to those who cannot individually pay for it.
Generally, the word “positive” is associated with someone who strive to
move forward against an unfavorable situation. Nevertheless, this association
may become untenable when optimism is overl stretched to the point of
self-ignorance. That’s when it backfires.请问老师that是指代上文...