First to thirtieth
第三十───thirtieth;第一───first
The thirtieth math question was the hardest.───第三十道数学题是最难的.
I said December thirtieth.───我说的是12月30号.
For my thirtieth birthday, my friends clubbed together and bought me a watch.───为庆祝我30岁生日,朋友们凑钱给我买了块表。
I arrived in the thirtieth position of the marathon.───我在马拉松比赛中跑了第三十名.
One second of arc movement is one thirtieth of a millimetre.───一弧秒的移动是一毫米的三十分之一.
Their best striker, Lu Ming , scored in the thirtieth minute.───他们的最佳前锋 鲁明 在三十分钟时射进一球.
That was their thirtieth wedding anniversary.───那天是他们结婚三十周年纪念日.
Mister Wolfowitz resigned last month; his last day is June thirtieth.───W先生上月提出辞呈; 他的任期最后一天是6月30日.