1
keep a logbook
logbook 是可数名词，复数形式为 logbooks。
The captain keeps a logbook every day.
船长每天记录航海日志。
航海日志；航空日志；记录册
先理解核心含义，再看它在真实句子里的用法。
航海日志；航空日志；记录册
a book in which the log is written
The captain keeps a logbook every day.
船长每天记录航海日志。
记录船只位置测量值以及航行中其他重要细节(如天气、补给情况、船员表现、所见其他船只等)的簿册。
A book in which measurements of a ship's position are recorded, along with other salient details of the voyage, such as weather, resupply occasions, the crew's performance, other ships sighted, and so on.
记录事件的书；日志,尤指旅行日志。
A book in which events are recorded; a journal, especially of travel.
The captain wrote the weather conditions in the ship's logbook every hour.
船长每小时都把天气情况写进航海日志。
Please remember to sign the logbook before you leave the laboratory.
离开实验室前请记得在记录册上签名。
The pilot checked the aircraft's logbook for the latest maintenance record.
飞行员查看了飞机的航程日志以了解最近的维修记录。
logbook 是可数名词，复数形式为 logbooks。
The captain keeps a logbook every day.
船长每天记录航海日志。
常与 in a logbook 连用，表示把信息写进记录册。
Please record the engine temperature in the logbook.
请把引擎温度记录在日志里。
The museum displays a logbook of the ship's voyages.
博物馆展出了一本记录该船航程的航海日志。
Not this
He wrote the flight details in logbook.
Use this
He wrote the flight details in the logbook.
logbook 是可数名词，不能光秃秃地用单数形式作介词宾语；需要冠词 the 或 a 来限定，汉语习惯省略冠词，所以容易漏掉。
Not this
She recorded the experiment data on the logbook.
Use this
She recorded the experiment data in the logbook.
表示写进或记录在某本册子里，介词要用 in，而 on 只表示在表面上；logbook 是供书写的册子，所以地点该用 in the logbook。
Not this
There are several logbook on the shelf.
Use this
There are several logbooks on the shelf.
logbook 是可数名词，在 several 等表示复数的词后必须用复数形式 logbooks；汉语名词没有复数词尾变化，所以容易漏掉 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
船上的航海日志
The captain wrote down the weather conditions in the ship's logbook.
船长将天气情况写进了航海日志。
航空日志
All flights must be recorded in the aircraft logbook.
所有飞行都必须记录在航空日志中。
日志条目；日志记录
She made a detailed logbook entry after every experiment.
每次实验后，她都做一条详细的日志记录。
记日志；做日志记录
The researcher keeps a logbook of all her daily observations.
这位研究员每天把所有观察都记在日志里。
在日志上签名；在记录册上签名
Every visitor must sign the logbook before entering the lab.
每位访客进入实验室前都必须在记录册上签名。
Use logbook naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把每天写下的记录（log）钉成一本书（book），就是航海日志。记住 log 有‘记录’之意，logbook 就是记录册。
语域：neutral 常见场景：航海或航空记录、车辆、设备或工作日志 logbook 是中性词，通常用于正式或半正式的记录场景，比较常见于航海、航空以及车辆或设备维护等领域。
可数名词；复数形式为 logbooks。
Dictionary facts from ECDICT, WIKTIONARY.