People are lonely because they build walls instead of bridges.
人们寂寞是因为他们建了墙壁而不是桥梁。
germ noun
[dʒɜːrm]
a minute life form (especially a disease-causing bacterium)
微生物，细菌，病菌
例句：
This germ is found on things used by the patients.
这种细菌附着在病人使用过的东西上。
