三万

• 30 thousand

例句

1. 飞机在三万英尺的高空飞行。
   The plane flew at an altitude of30000 feet.
2. 不过，本公司已决定订购两艘两万吨级至三万吨级的船只。
   However, we have decide to go ahead with two ships in the20 to30 thousand ton class.