eightieth
英['eɪtiəθ] 美['eɪtiəθ]
Mr Stevens recently cele-brated his eightieth birthday.
史蒂文斯先生最近庆祝了他的80大寿。
All our family came to our grandfather's eightieth birthday party.
我们全家和所有的亲戚都来参加祖父的八十岁寿宴.
We are going to celebrate our granduncle's eightieth birthday.
明天我们要给舅爷过八十大寿.
The stamps have been issued to mark the eightieth anniversary of Russia's counter - intelligence service.
这套邮票是纪念俄国 反 情报部门成立80周年而发行的.
Nano - particle size is only one eightieth of the hair, also known as Advanced Micro Devices particles.
纳米 粒子大小只有头发丝的八十分之一, 也被称为超微颗粒.