a signal is fed back to the input and combined with the input signal to produce a desired system response.fed 和combined 应该都是被动语态，，可是只用了一个be动词，这在语法上是合理的吗？谢谢老师！
... taste, is a simple expression comprising a culinary
tradition with long-standing history and thousands of named dishes.编者译文：“中国人的口味”，即烹饪的符合中国人口味的食物，这是一种简单的表达，其中包含了悠久的烹饪传统和数千种具有名字的...
...hout having dozens of questions about related concept. It can go
anywhere, and there is something in there for absolutely anybody .
这里的最后一句话是怎么理解呢。absolutely修饰的是介词短语吗？
...子是：You can't avoid some work in order to learn some necessary words and
all the more if you want to learn quickly.这里all the more 后面是省略了work 吗？all the more 我记得一般是就是指“更加”，是修饰形容词的，我感觉我的理解解释不通。难道这里all t...
...高中英语新教材人教版必修一 p3：Try to use the
introductions and greetings below.一般都认为：try to do表示“试图做”，try doing 表示“试着做”。但感觉这里应该就是翻译成“试着做”啊。不是可以像下面这样翻译吗？试着使用下面的介...
You see them many times decorated with red envelopes and messages of good fortune.句中 many times 是（时间）做状语成分吗？many times为什么不放在句末？放在这里的位置是什么语法结构？放在句末和放在这里翻译上有什么区别（many times这里究竟修饰...
..., "I am a typical Hollywood actor, so I have never had an original thought and I have nothing to say of any interest to anyone anywhere."anywhere这里修饰整个句子，表示什么意思？
...embers of the deer family arc an important economically resource to Inuits and other Native Americans.这两处划线部分可改，答案把 economically 改成了 economical，说形容词修饰名词，这个我懂，可是前面已经有个 important 了啊！没有连接词，可以直接并列...
...of information is the development of technologies which enable the storage and delivery of more infromation with greater speed to more locations than has ever been possible before.我觉得首先这是一个coupled with提前的倒装句。which指代the development of technologies. than...
...ou then examined the European national youth teams that feed the World Cup and professional ranks, you would find this strange phenomenon to be even more pronounced.【参考译文】然后，你再去分析为世界杯和职业球队输送人才的欧洲国家青年队，那你就会发现这...
原文: Glass and Singer (1972) showed that situations in which there is intense noise have less effect on performance than circumstances in which unexpected noise occurs. 请问：句中 in which there is intense noise have less...have 不应该是 having 吗？
...子中，同时出现的agree的两种用法：She agreed with her parents and brothers that it would be... 在这个句子中同时包括了谓语agree 的两个用法。agree with SB（介词短语） 和 agree + that（从句）。
请问，是否这些在做及物动词时可以接that从...
...s were agreed 15 years ago provided an important framework for development and significant progress has been made in a number of areas. 其中"provided an important framework for development"一句是修饰“Goals"的定语从句吗？如果是，为什么会用成”provided&qu...
...克的文章中有一句话：In 2018，Musk had to pay a $20 million fine and had to step down as chairman for
three years after triggering an S EC investigation when she tweeded about
taking Tesla private。我想这句话中step down是一个动词短语，后面紧跟的单词as是介词，但...