Barrier penetration
[化] 势垒穿透
🧩 词语组成解析
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
Oh no! Is it serious?
噢， 糟糕， 严重吗？
I'd met Stone several times before.
以前我见过世通几次。
He's been there for over two years. He's been there since two years ago.
他到校有两年多时间了。他两年前就到那儿学习了。