Ditolyl
联甲苯
🗣️ 情景例句
Very few people last in this class for the full hour the very first time.
很少人能够第一次撑完一个小时的课。
Did you get dressed right away?
你马上穿好衣服吗？
One wonders also why Nature, with some snakes, concocted poison of such extreme potency.
然而，在脊椎动物中，大自然神秘模测地只选择了蛇（还有一种蜥蜴），人们弄不清楚大自然为什么在某些蛇的身上调制出如此高效的毒液来。