a-concerned-look [ə kənˈsɜːnd lʊk]

释义：担忧的表情；关切的神色

用法：形容一个人面带担忧或关切的表情，通常是因为担心某件事情或对某人感到担忧。

例句：

1. She gave me a concerned look when she saw the bruises on my arm. (当她看到我胳膊上的伤痕时，她露出了一副关切的表情。)

2. He had a concerned look on his face as he waited for the test results. (当他等待着测试结果时，脸上带着一丝关切。)

3. The teacher looked at the students with a concerned look, knowing that they were struggling with their studies. (老师用一种关切的眼神看着学生们，知道他们在学习上有困难。)

4. My mom always has a concerned look on her face when I tell her about my problems. (每当我向妈妈诉说我的问题时，她总是脸上带着一副关切的表情。)

5. The doctor's concerned look made me worry even more about my health condition. (医生关切的表情让我更担心我的健康状况。)

同义词及用法：

1. worried expression：担忧的表情，指人面带担忧的神情。

2. anxious look：焦虑的表情，指人面带焦虑的神情。

3. troubled countenance：不安的表情，指人脸上带有不安的神色。

4. troubled look：困扰的表情，指人脸上带有困扰的神色。

5. troubled expression：苦恼的表情，指人脸上带有苦恼的神色。

编辑总结：

a-concerned-look是一个形容词短语，用来描述一个人面对某种情况时所展现出来的担忧或关切的表情。它可以用来形容任何年龄、性别和背景的人，在各种场合下都能使用。除了用于正式场合外，也可以用于日常口语中。在写作时，可以通过一些动词搭配来增强其表现力，如give a concerned look, have a concerned look, wear a concerned look等。此外，在与同义词进行比较时，需要注意它们之间微妙的差别，以便更准确地选择合适的词语来描述人物所展现出来的表情。