They must come on a broad front; no single change is sufficient.

改变必须是大范围的，单独的改变是不够的。

youdao

A three-passenger swing hung from the ceiling of the broad front porch.

宽阔的门廊上挂着一个可供三人玩的秋千。

youdao

A three-passenger swing hung from the ceiling of the broad front porch.

宽阔的门廊上挂着一个可供三人玩的秋千。

youdao