Diffusion barrier
[化] 扩散膜
🧩 词语组成解析
🗣️ 情景例句
You're very generous.
你真慷慨。
I'd say the expected delivery date should be by the end of the month.
我得说预定发货日期应该在本月底。
Debbie is only eleven years old and she hopes to set up a new world record.
黛比只有11岁，她希望创一项新的世界纪录。