Squaric acid
[化] 方形酸; 二羟基环丁烯二酮
🧩 词语组成解析
🗣️ 情景例句
How long will this letter take to get there?
这封信需要多长时间到那儿？
There is a crook(=affliction,trial) in the lot of every one.
人生总有倒楣事；人生总有不如意处。
feel that they have not received adequate treatment unless they are able to carry home with them some tangible remedy in the shape of a bottle of medicine,
觉得没算得到充分的治疗，如果不能带回一些看得见、摸得着的药物回家的话，如一瓶药水、