VERB
保证;确保;担保
To ensure something, or to ensure that something happens, means to make certain that it happens.
例句
Britain's negotiators had ensured that the treaty which resulted was a significant change in direction...
英国谈判代表已经担保由此而签订的条约将是方向上的重大改变。
Ensure that it is written into your contract.
确保把这一点写入合同中。