The backward connection should begin in a decision and lead back to a merge.

逆向连接应从decision开始并引回merge。

youdao

The forward compatibility backward compatibility tin whisker voids micro-voids and surface finishes were emphasized and how to avoid the lead free transfer problems were reviewed.

重点论述了前向兼容与后向兼容、锡须、空洞与微空洞、可焊性涂层以及如何避免无铅转移中出现的问题。

youdao

It was not long before Tendulkar took the lead again, however, blasting Afridi over cover, backward of and in front of point for three boundaries in as many balls.

BBC: Sachin Tendulkar is bowled off an inside edge