Sp. gr.
[医] 比重
🧩 词语组成解析
[医] 酒精; 醑剂
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
He always comes rushing up at the last moment.
他往往到最后的一瞬间才急忙赶来。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。