the containings of sth
containing 作名词时表示“内容、容纳之物”，现代英语中很少见，多见于旧文献；复数形式为 containings。
The containings of the box were mostly old letters.
那只箱子里装的东西大多是旧信件。
内容；容纳之物
包含
contents; the things contained within something
内容。
contents
The containings of the old chest were letters and photographs.
旧箱子里装的是信件和照片。
用法提示：containing 的名词复数形式 containings 在这里作主语，表示“所装之物、内容”。
Please check the containings of the suitcase before you leave.
出发前请检查行李箱里的东西。
用法提示：containings 用作名词作宾语，表示“箱子内的物品”。
She wrote down the containings of each box with a red pen.
她用红笔记下了每个盒子里的东西。
用法提示：containings 作介词 of 的宾语，表达“盒中的内容”。
containing 作名词时表示“内容、容纳之物”，现代英语中很少见，多见于旧文献；复数形式为 containings。
The containings of the box were mostly old letters.
那只箱子里装的东西大多是旧信件。
该词常用复数形式，与 list、record 等动词搭配，说明某容器内所装之物。
The clerk recorded the containings of the crate.
那名职员记录下了板条箱里装的东西。
grammar · medium
易错句子My bag is containing a laptop and two notebooks.
正确表达My bag contains a laptop and two notebooks.
contain 表示“容纳、装有”时是状态动词，不能用于进行时；汉语“包里装着笔记本电脑”用“装着”表示持续状态，英语却要用一般现在时 contains，所以要去掉 be 动词并把 containing 改为 contains。
grammar · medium
易错句子Avoid drinks containing of too much sugar.
正确表达Avoid drinks containing too much sugar.
contain 是及物动词，后面直接接宾语，不加介词 of；受汉语“含有……的”说法或 consist of 的干扰，学习者常误加 of，删去 of 后句子才符合英语及物动词的用法。
grammar · medium
易错句子There are thirty students in the class, containing five from China.
正确表达There are thirty students in the class, including five from China.
列举整体中的部分成员时要用 including（“包括”），containing 表示“含有、容纳某物”，不能用来引出成员的列举；汉语“包括我在内的三十名学生”对应 including me，而不是 containing me。
contents 是现代英语表达“内容、内装物”的常用词，可数且多用复数；containing 作名词表“内容”极为罕见，只见于古旧或专门的文本，日常写作和口语中不要用它替代 contents。
container 指盛放物品的器皿或箱体本身，是可数的具体物体；containing 指的是“里面装的东西”，一个指外壳，一个指内装物，含义正好相反。
containment 是抽象名词，指阻止某事物扩散（如疾病、敌对势力）的政策或行动，不能表示“内容物”；它和 containing 只是词形相近，含义毫无重叠。
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