单词：Th
[医] 钍(90号元素)
n the fifth day of the week; the fourth working day
n a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
n a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
TH的用法和样例：
例句
- Th woman was delighted at the recovery of her stolen jewels.那位妇人对找回被盗的珠宝感到非常高兴。