Cobalamine
[化] 钴胺素
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
Keep in touch.
再联络！
There were books, clothing and photographs, together with letters which the seaman had once received from his wife.
其中有书箱、衣服、照片以及水手收到的妻子的来信。