time-consuming
US /ˈtaɪm.kənˌsuː.mɪŋ/
UK /ˈtaɪm.kənˌsuː.mɪŋ/

1.
耗時, 費時
taking a lot of time to do or complete
:
•
The paperwork for the new project is very time-consuming.
新專案的文書工作非常耗時。
•
Learning a new language can be a time-consuming process.
學習一門新語言可能是一個耗時的過程。