put emphasis on upon的用法和樣例：
例句
- The book focuses on abstract analysis.
這本書(shū)著(zhù)重于抽象分析。 - Then they formulate clear goals that focus upon meeting these needs.
然后他們闡明了著(zhù)重于滿(mǎn)足這些需求的清晰目標。 - I think we are concentrating on usability.
我想我們正把重點(diǎn)放在可用性上。 - She lays a lot of emphasis on the usage of prepositions.
她把重點(diǎn)放在介詞的使用上。
