这种设备比较容易安装而且用起来便宜。
The unit is comparatively easy to install and cheap to operate.
淋浴器很容易安装–只需接上冷热水即可。
The shower is easy to install – it needs only to be connected up to the hot and cold water supply.
这种安全带很容易安装，因为不需要把它拴在安全带固定点上。
The safety belt is easy to fit as there's no need to bolt it to seat belt anchorage points.
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