Penetration theory
[化] 穿透理论
🧩 词语组成解析
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
Look before you leap.
三思而后行。
Who is going to pay for it?
谁付账？
Often the little words have meanings of their own.
这些小词常常都有自己本身的意思。