Depth of penetration
[化] 穿透深度
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
This has been a hard course for me.
这门课对于我来说很难。
Come to me if you're in any difficulty.
有困难来找我。
Oh, dear. I forgot to tell you. Would you like to come?
哎唷。我忘了告诉你。你愿意来吗？