说2-year-low level 是不是就对了？

two-year level中两年做定语，变成了level的固有性质；而in two years则是做状语，修饰整个句子。在这题中，做状语更合适。

so that的意思用在这里不是很合适

RON：the principal objection here is that the meaning is incorrect/unclear: for instance, a 'two-year low level' could mean that it hit a low level and then stayed there for two years.
consider other uses of the adjective "two-year":
a two-year lease is a lease that LASTS for two years.
a two-year recession is a recession that LASTS for two years.
a two-year marriage ... etc. etc.

做题时纠结点在于：觉得在两年之间的比较不能用最高级，所以选了一个咩有最高级的D。
【转载gmatclub】：you're right that we wouldn't want to use "lowest" to compare two figures, such as the levels for two entire years.
However, "the lowest level in two years" means that if we look at all the levels over a two year period, this would be the lowest point.
Imagine a graph of daily, weekly, or monthly values for the past two years. We're talking about the absolute lowest point on that graph.

(D) to a two-year low level
By saying "low level," it doesn't tell us this is the lowest level in two years - just that it's low. It could have been just as low at some other point in the past two years, and that this is just one of those times. Since that's not specific enough for readers to understand quickly, it's not the best answer.

A选项：the july decrease是名词，so that 不能用来修饰名词；it 指代不明确，可以是july decrease 或者unemployment
B选项：同理
C选项：to what would be 中的would使用有误，因为需要表示事实
D选项：表达有误，two year low level可以有多个意思，此处意思模糊

repo：
1. two-year有歧义，通常表示持续两年
RON：the principal objection here is that the meaning is incorrect/unclear: for instance, a 'two-year low level' could mean that it hit a low level and then stayed there for two years.
consider other uses of the adjective "two-year":
a two-year lease is a lease that LASTS for two years.
a two-year recession is a recession that LASTS for two years.
a two-year marriage ... etc. etc.
2. 语义上：达到最低点才能推导出持续增长，因此是lowest

一些经济学家认为，7月份的失业率下降至两年来的最低水平，表明就业市场的逐步改善正在继续。

D沒有表現出最高級得概念

1) C项的时态would有问题，而且wordy

two-year level中两年做定语，变成了level的固有性质；而in two years则是做状语，修饰整个句子。在这题中，做状语更合适。

D表示一个持续的时间段 a 'two-year low level' could mean that it hit a low level and then stayed there for two years.
E表示一个时点
都在修饰level， DE最大的差别是low 和 lowest，后面的句子中描述gradual improvement，只有当到达最低点才能说在逐渐上升。

two-year level中两年做定语，变成了level的固有性质；而in two years则是做状语，修饰整个句子。在这题中，做状语更合适。
C选项：to what would be 中的would使用有误，因为需要表示事实

two-year level中两年做定语，变成了level的固有性质；而in two years则是做状语，修饰整个句子。在这题中，做状语更合适
AE区别：so that 不能用来修饰名词

more about "two-year" low
the principal objection here is that the meaning is incorrect/unclear: for instance, a 'two-year low level' could mean that it hit a low level and then stayed there for two years.
we can see that this answer choice has (or at least primarily suggests) the incorrect meaning: a two-year low level would be a low level that lasted for two years. that's not the intended meaning in the problem.

D表示一个持续的时间段
E表示一个时点
句子的意思是在某个时点达到的最低点 所以选E

in two years 也可以做定语？都在修饰level， DE最大的差别是low 和 lowest，后面的句子中描述gradual improvement，只有当到达最低点才能说在逐渐上升

这道题误解了比较级
以为两年是两个东西在比只能用-er的比较级，不能用-est最高级
然而两年内的level不限于两个东西，so……

two-year level中两年做定语，变成了level的固有性质；而in two years则是做状语，修饰整个句子。在这题中，做状语更合适。