"hold in arms" 是“用双臂抱着；怀抱”的意思，强调用双臂环住某人/某物并保持其在怀中的状态，通常表达亲密、保护或安抚的情感。
需注意：完整的常用结构是 "hold sb./sth. in one's arms"（把某人/某物抱在自己怀里），其中 "one's" 需根据主语替换为对应的所有格代词（如 my/your/his/her/their 等）。单独说 "hold in arms" 语义不完整，需补充“抱的对象”和“谁的手臂”。
宾语：通常是人（如 baby/child/loved one）或小型物品（如 teddy bear/cup）；
所有格：需与主语一致（表示“用某人自己的手臂”）。
She held the sleeping baby in her arms and rocked gently.
她抱着熟睡的婴儿，轻轻摇晃。
The little boy held his favorite teddy bear in his arms and refused to let go.
小男孩抱着他最爱的泰迪熊，不肯松手。
When I felt scared, my mom held me in her arms and said everything would be okay.
当我害怕时，妈妈抱着我说一切都会好起来。
若强调“被抱”的状态，可用于被动结构（be held in one's arms）：
The lost kitten was held in the stranger's arms until its owner came.
走失的小猫被陌生人抱在怀里，直到主人来。
The injured bird was carefully held in the vet's arms during the check-up.
受伤的鸟在检查时被兽医小心地抱在怀里。
可加副词修饰“抱”的方式（如 gently/tightly/carefully 等）：
He held his wife tightly in his arms after a long separation.
久别重逢后，他紧紧抱着妻子。
The nurse held the sick child gently in her arms to calm him down.
护士温柔地抱着生病的孩子，让他平静下来。
1、 不可省略关键成分：不能单独说 "I hold in arms"，需补充宾语（如 "the baby"）和所有格（如 "my"），即 "I hold the baby in my arms"。
2、 与类似短语的区别：
embrace：更强调“拥抱”的动作（短暂的环绕）；
cradle in one's arms：强调“像摇篮一样轻摇着抱”（更温柔）；
hold in arms：更侧重“持续抱着的状态”（中性或温暖）。
"hold (sb./sth.) in one's arms" 是表达“怀抱”的标准短语，核心是用双臂保持某人/某物在怀中，常用于传递亲密、保护或安抚的情绪，需注意补充“抱的对象”和“谁的手臂”以保证语义完整。