In the past hundred years,there have been frequent natural disasters worldwide,such as floods,droughts,typhoons,earthquakes,landslides,forest fires,or which some are made worse or even caused by human activities这里的or which是打字错误吗，如果不是，or which 是什么用法呢？...
Studying this could help understand why human evolution picked pace in the last 30,000 years, with social environment being a major contributory factor.请问老师，句末由with引导的独立主格结构做伴随状语，为什么不能当定语从句理解？形式是一样的，如何区分？...
A Hong Kong lawyer violently beaten by rioters on Sunday has urged that the upcoming national security law be implemented as soon as possible so that violent protesters can no longer "act unscrupulously at their will."
The research group found that consumers want _________(health) food
based on vegetables not meat products.请问如何填？表示“健康食品”，是用 healthy food还是healthful food？
...，我在抄记短语时遇到了一个这样的问题：eg1：She entered the
room and threw off her wet coat. eg2：We ran flat out
for about half a mile before we could throw them off. 这是我在查throw off（中间没有省略号）意思时给出的例句，请问老师在第二局中能...
牛津英语用法指南第一版130.2条：
It could rain later on this evening. 晚上以后可能下雨。
然而第三版却改为：
It could rain later this evening, perhaps. 今天晚上晚些时候也许会下雨。（122.8条）
第一版用的是：later on this evening ...
There is no man, whatever his fortune, who is now in any earnest offices.那里的人们，不管是否有钱，没有一个从事正经的行业。请教老师：whatever his fortune 能否讲一下whatever+名词的这种用法？ 为什么whatever his fortune 的意思是“不管是否有钱“...
...位老外。关于in someway and in some ways的用法：“in some way” is wrong. “in some ways” is correct. “some”refers to multiple, yet way is singular . If you are referring to only one way, you would use “in a way”. 鲜花等候中。
The new law comes into force as from midnight tomorrow. 新法律从明天零点起开始生效。句中的 as from midnight tomorrow 表示“从明天零点起开始”，查了一下词典，as from 的意思是“从……起”，而单独用 from 不是也表示“从……起”吗？那这...