Lack of penetration
[化] 未焊透
🧩 词语组成解析
lack
[læk]
vt. 缺乏，缺少;需要的东西;
n. 缺乏，不足，没有;缺少的东西;
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
Tell me the courses you have completed in school and what is your favorite subject?
你曾修读哪些课程和你最喜欢哪一科？
The brightest of all things, the sun, has its spots.
金无赤足，人无完人。
What did he do?
他是干什么的？