家庭是社会的传统组成部分，而美国青年越来越拒绝婚姻，使这种观念受到了挑战。
The idea that family is the traditional unit of society is challenged by American youth who are increasingly turning down marriage.
传统反映的是一个家庭的信仰、迷信观念和个性。
Traditions are reflections of the beliefs, superstitions and personality of a family.
尤其是过去几周目睹的一系列大事件，甚至颠覆了传统观念，使灵巧却受限制的工业机器人摇身一变成为家庭的巧助手。
The past few weeks, in particular, have seen a sequence of events that could yet prove to be the tipping point that turned dextrous but limited industrial robots into handy helpmates around the home.
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