The towns farther away from New Haven tended to be wealthier, with the ethnic lines more blurred.

周边的地区，离纽黑文越远越富庶，而且种族之间的界限也更加模糊。

youdao

Some pessimists meanwhile point out that a divided executive may make Kenya more unstable, especially if the division is along ethnic lines.

但一些悲观者同时指出，划分权力的做法只会给肯尼亚添乱，尤其是按种族划分的话。

youdao

Conclusion: the same gene mutation may play different roles in different populations because of the differences of geographic environment, ethnic lines and living conditions.

结论：由于地理环境、种族和生活条件的不同，相同的基因突变在不同的人群中所起的作用可能不同。

youdao

Perhaps demonstrating the point is that polls indicate votes are going to fall largely along ethnic lines.

CNN: Experts: Voter turnout could deal blow to Taliban

Considerable progress has been made in achieving universal access to primary and secondary schooling across racial and ethnic lines.

UNESCO: II Part Analytic Section

El-Bashir rejects claims that the Darfur conflict is being fought along ethnic lines.

CNN: U.N. report: Darfur attacks broke human rights law