B complex
复合维生素b
🧩 词语组成解析
🗣️ 情景例句
When I first graduated from college.
那时我刚从大学毕业。
He who overcomes his anger subdues his greatest enemy.
克制火气就是克制强敌。
In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro.
1948年他去了刚果的基伍湖，对一座后来被他命名为基图罗的新火山进行观察。