Redar
红外光测距仪
🗣️ 情景例句
I don't want to work for minimum wage.
我可不想为拿这么微薄的工资而工作。
Where have you been?
你去哪儿了？
The bridge is so long that the shape of the earth had to be taken into account by its designer.
由于桥身太长，设计者不得不考虑了地表的形状。