Millitron
米里特朗染色机
🗣️ 情景例句
who spent the last five years
用过去五年的时间
You are still thinking about a Ph.D., aren't you?
你还是想学成博士，是吗？
and he estimated that there were more than 2,250,000 in one acre;
他估计每英亩草坪里有225万多只蜘蛛。