This one is over a hundred meters high, the size of a thirty story building. 这颗超过100米的树有30层楼房那么高
At least thirty snakes have now joined the caravan. 至少有30条海蛇加入到了这个队伍
Thirty days after it last set, the sun rises once more on Antarctica. 南极洲的太阳在落山30天后 再次升起
For now though it's still minus thirty degrees 而现在的气温仍然有-30℃