One reason is the increasing upward mobility of the younger generation.
原因之一是年轻一代的上进心增强了.
For decades, Japanese customers were drawn to pricey handbags and jewelry as symbols of upward mobility.
几十年来, 日本消费者热衷于昂贵的手袋和珠宝,认为这是进入上流社会的象征.
At the time, the upward and downward mobility of the lateral mass was inhibited because the stress concentration was caused by superior joint surface pressing lateral mass that made contraction and stress concentrate on the anterio posterior arch.
由于此时侧块上下方向的活动被限制,应力的集中是因上关节面受力后推压侧块向外侧滑移,使得前后弓受牵拉张力所致。
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