Maintenance-free
[计] 不需维护的
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
🗣️ 情景例句
He's really cute.
他真是逗人喜爱。
This kind of box is not suitable for the transport of the tea sets by sea.
这种箱子不适合装茶具海运。
Are there any boats in the picture?
画里面有船吗？