1. As a combination of the diachronic and synchronic study, the phenomenon of grammaticalization has become one of the hottest issues in recent years. 近年来，作为历时研究和共时研究的结合点，语法化现象一直是语言学界研究的热门问题之一。
2. The ancient Chinese cosmological modes have eminent synchronic tendency, which, from the static perspective, looks like a simplified classifying system. 中国古代的宇宙模式具有突出的共时性倾向，从静态角度看，就像一个简约的分类系统。
3. It is now a tendency to integrate synchronic study with diachronic study, contemporary perspective with historic perspective in lexical semantic studies. 词汇语义的共时与历时、当代与历史的结合研究是目前现代汉语词汇语义研究的趋势。
英英解释
adj.
1. occurring or existing at the same time or having the same period or phase
2. concerned with phenomena (especially language) at a particular period without considering historical
3. (of taxa) occurring in the same period of geological time
