Crime has been falling for two decades.Race relations have improved.
二十年来犯罪活动一直在减少，种族关系得到了改善。
The relations between the two countries has improved since then.
两国的关系从那以后得到了改善。
The position of Middle East in the foreign relations of China is further improved.
中东在中国对外关系中的地位进一步提升。
The relations between the two countries have improved.
两国关系已经改善。
Although the relations between the two countries have improved, they are still subject to fluctuations.
两国关系虽有所改善，但仍起伏不定。
Although the relations between the two countries have improved, they are still subject to fluctuations.
两国关系虽有所改善，但仍起伏不定。
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