renewable造句
A formal contract is signed which is
renewable annually.
正式签订了每年可续签的合同。
Renewable sources of energy must be used where practical.
必须在可行的地方使用可再生能源。
The success of wind power represents a litmus test for
renewable energy.
风能作为动力的成功是对可再生能源一次立见分晓的检验。