Potassium-argon
a. 鉀氬測年法的
?? 詞語組成解析
potassium
[[p?'t?si?m]]
n. 鉀\\n[化] 鉀K
argon
[['a:g?n]]
n. 氬\\n[化] 氬Ar
??? 情景例句
That's fine with me. I can do it either day.
對我來說時(shí)間很適合。兩天中哪一天我都可以。
I would like to go.
我要走了。
The first thing I saw when I entered the art gallery was a notice which said:
走進(jìn)展廳首先看到的是一張告示，上面寫著