我们不会让一项技术公之于众，除非我们觉得这项技术已经臻于完美。

We don't want to put any technology out for the public to use until we think it is perfect.

youdao

尽管采取了所有这些举措，我们也不能完全确保边境的安全，除非我们消除边境上的压力——而这就要求要有一项临时工人计划。

Yet even with all these steps, we cannot fully secure the border unless we take pressure off the border - and that requires a temporary worker program.

youdao