Selective etching
[计] 选择蚀刻
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
etching
[['etʃiŋ]]
n. 蚀刻版画, 蚀刻画, 蚀刻术\\n[化] 蚀刻; 浸蚀
🗣️ 情景例句
But it'll be better tomorrow.
但是明天就会好多了。
Almost everyone is aware of environmental problems in America.
在美国，几乎人人都注意到环境问题。
Each day is a holiday,and ordinary holidays, when they come,
每天都是假日，而通常的假期到来时，