be attentive to sb/sth
She was attentive to every detail of the plan.
她对计划的每个细节都很注意。
关心的；体贴的；有礼貌的；殷勤的；注意的；留意的；专心的；(常跟随“to”)给予关心或注意；有礼貌的；留心的。
Paying attention; giving close and thoughtful attention.
注意的；留意的；专心的
Paying attention; noticing, watching, listening, or attending closely.
(常跟随“to”)给予关心或注意
(often followed by `to') giving care or attention
有礼貌的；留心的。
Courteous; mindful.
注意；给予密切和深思熟虑的关注
taking heed; giving close and thoughtful attention
During the lecture, the students were very attentive and took detailed notes.
课堂听讲时，学生们非常专心，记了详细的笔记。
用法提示：attentive 作表语形容词，表示‘专心的’。
AI contextual example
The attentive waiter noticed our empty glasses and immediately refilled them.
那位细心的服务员注意到我们的杯子空了，立刻给我们续杯。
用法提示：attentive 作定语形容词，表示‘细心的、周到的’。
AI contextual example
Please be attentive to the safety instructions before the experiment begins.
实验开始前请留意安全说明。
用法提示：attentive 与介词 to 连用，表示‘注意的’。
AI contextual example
She was attentive to every detail of the plan.
她对计划的每个细节都很注意。
He is always attentive in listening to his students.
他总是在听学生说话时很专心。
The audience remained attentive throughout the long lecture.
观众在整个漫长的讲座中一直保持专心。
alert 强调警觉和快速反应，常指处于戒备状态；attentive 更多指持续专心，不一定有紧急感。
watchful 强调持续盯着以防异常，语气较正式；attentive 可指一般地集中注意力听或看。
observant 侧重敏锐察觉细节，常与视觉或观察有关；attentive 泛指专心听讲、留意。
mindful 常与 of 搭配，指意识到并放在心上，较正式；attentive 不一定带这种‘记得顾及’的含义。
grammar · medium
易错句子He is very attention in class.
正确表达He is very attentive in class.
中文的“注意”常被误认为英语名词attention，但此处需要形容词attentive表示“专心的”.
grammar · medium
易错句子She is attentive on her work.
正确表达She is attentive to her work.
attentive后常接介词to表示“对…专注”，而不用on.
与 attentive 的‘注意的；专心的’义相反，指未能集中注意力。
与 attentive 的‘小心留意的’义相反，强调冒险、不计后果，并非‘不注意’的完全同义反义词。
attentive 侧重于专注、注意细节，而 careful 侧重于避免错误或危险。
attentive 指对事物或人的专注，而 considerate 指顾及他人感受。
注重细节；一丝不苟
She is very attentive to detail, so her reports are always accurate.
她非常注重细节，所以她的报告总是很准确。
认真的倾听者；专注的听众
In a conversation, an attentive listener makes the speaker feel respected.
在交谈中，认真的倾听者会让说话者感到被尊重。
专注的观众/听众
An attentive audience often leads to a more lively question-and-answer session.
专注的听众往往能使问答环节更加活跃。
周到的服务
The hotel staff gave us attentive service throughout our stay.
我们住宿期间，酒店员工给予了我们周到的服务。
细心照料；悉心护理
The nurse provided attentive care to every patient.
这名护士对每位病人都给予了细心照料。
attent- + -ion
attentive + -ly
attentive + -ness
in- + attentive
in- + attention
attention + -al
at- (toward) + tent (stretch) + -ive (adjective suffix); related: attention, attend, attentively
常与 attentive 搭配，如 attentive listener，指认真倾听的人。
attentive to detail 表示对细节的关注，体现其“留心、注意”的含义。
attentive audience 指专注投入的听众，反映认真关注的语义场景。
attentive 与 concentration 都涉及注意力的集中，语义上密切相关。
attentive 有“体贴、殷勤”的意思，与 courtesy 在待人接物方面相关联。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.