149. while （熟义：conj. 当… 时候 ）conj. 然而；尽管; 既然；虽然
I drink black coffee while he prefers it with cream. 我爱喝清咖啡而他喜欢加奶油的。
While I admit that there are problems, I don’t agree that they cannot be solved.
尽管我承认有问题存在，但我没说这些问题不能解决。
150．word （熟义：n. 单词，话 ）n. 消息
Word came that I was needed at home. 有信儿来说家里需要我。
