There are three distinctions between "unobstructed" and "unobstructed" in the following three ways:
1. They have different pronunciations. The word "legacy" is pronounced "yí", while the word "yu" is pronounced "yú". In terms of pronunciation, there is a clear difference between the two.
2. The meaning of individual words is also different. "Legacy" means to leave behind, to stay, while "remaining" means to remain, to remain. Therefore, "at a glance" means that everything is fully revealed, and nothing is missing. For example, when reading a long story, we may encounter a lot of characters and plots, but just by reading the whole story at a glance, we can get a full picture of what we are about. "Unobstructed" means that all the scenery can be seen at a glance, describing the structure of the building without twists and turns, or the content of the poem is bland and has no aftertaste. In terms of meaning, there is a clear difference between the two. For example, when visiting the Palace Museum, we stood on a high vantage point overlooking the entire Forbidden City, and were able to see the whole of the Forbidden City at a glance.
3. They also come from different sources. The glimpse is from Li Luyuan's "Divergent Street Lamp" in the Qing Dynasty, and the unobstructed view is from Liu Yiqing's "New Words of the World" by Liu Yiqing of the Southern Dynasty. On the **, the two have different historical backgrounds.
To sum up, "at a glance" and "at a glance" both describe the scenery or content seen that is very comprehensive and has not been omitted. However, it should be noted that "at a glance" emphasizes more on the absence of obscuration or obscuration, while "at a glance" emphasizes more on narrating things without leaving out any details. When using it, you need to choose the right idiom according to the context.