After pouring a little of each into a large glass beaker, he stirred the mixture thoroughly with a wooden spoon, watching intently as it smoked and steamed and boiled and bubbled.

• 他把每个瓶子里的东西往一个大玻璃烧杯里倒了一点，然后用一把木匙子把混合液彻底搅匀，全神贯注地看着它冒烟，冒汽，沸腾，冒泡。）