Commercial depression
[经] 商业萧条, 商业不景气
🧩 词语组成解析
🗣️ 情景例句
Here's my grandfather. He lives in Florida.
这是我祖父 他住在Florida。
His friend was filled with joy over the good news.
他的朋友因得知这个好消息而雀跃。
and if a single curved glass would distort nature, how much more would a pair of them?
何况一片曲面镜就可歪曲自然，那么伽利略的两片曲面镜对自然的歪曲又该多大呢？