One option is to place your validation logic in a service layer.
一个选择就是把验证代码放到“Service”层中。
He wrapped one layer of the plastic around the card and tried again.
他在卡片上裹了一层塑料，然后又试了一次。
A good rule to dress your baby is one layer more than you wear.
给孩子穿衣服的原则就是，比你穿的多一层就好。
This option moves the object one layer back.
这个选项会将对象向后移一层。
The goal is to achieve 100 percent coverage of each layer, one to the next.
目标是达到每一层的100%覆盖。
Routers operate at the network layer in the network model, one step above Ethernet.
路由器在整个网络模型的网络层运行，比以太网高了一级。
This division lacks one layer, i. e. "social fundamental contradictions", the most essential one.
这种分法缺少一个层面，即“社会根本矛盾”这个最基本的层面。
The first one is client layer.
第一层是客户层。
The cover layer on one side of basin has double structure.
盆地一侧的盖层具有双重结构。
Only one base layer can be active at a time.
一次只能激活一个基础层。
The layer of meaning: no one is perfect.
其一层意思是：没有人是十全十美的。
The layer of meaning: no one is perfect.
其一层意思是：没有人是十全十美的。
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