司机们被要求要确保把汽车发动机调整好。
Drivers are urged to make sure that car engines are properly tuned.
美国空军被指控为波音公司——渴望其过时的767生产线保持运转，量身订做招标要求，确保波音公司成为唯一的投标者。
The USAF was accused of tailoring its requirements to ensure that Boeing, desperate to keep the production line for its ageing 767 running, was the sole bidder.
对单元测试的小的变化将要求我们重新检查代码以确保完全的覆盖率被维护。
Small changes to the unit tests would require us to audit the code again to ensure that full coverage had been maintained.
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