co-,表强调，-al,生长，词源同adult,adolescence.即长到一块。

1. Cities, if unrestricted, tend to coalesce into bigger and bigger conurbations.

如果不加限制，城市往往会联合发展成越来越大的集合城市。

2. The view of party leader coalesce to form a coherent policy.

党的领导人的各种观点已统一为一致的政策.

3. Gas bubbles coalesce to grow as they rise.

气泡在上升中聚集成长.

4. Particles do not coalesce with other particles.

颗粒之间互不聚合.

5. For both systems a cloud or train of bubbles may coalesce to give larger bubbles.

对这两个系统来说,一群或一串气泡都可以合并成较大的气泡.