如果没有启动，说明你没有正确按照指示来做。

If it isn't means that you are not following the instructions properly.

youdao

谷歌在一份声明中表示：“我们显然要承担部分责任，因为如果车没有启动，那就不会发生撞车事故了。”

In a statement, Google said, "We clearly bear some responsibility, because if our car hadn't moved, there wouldn't have been a crash."

youdao

首先，如果某个方法没有启动事务，那么它就不需要管理事务（例如，将其标记为回滚）。

First, if a method did not start a transaction, it has no business managing that transaction (for example, marking it for rollback).

youdao