bèi yòng
spare
The Chinese translation '备用' directly means to prepare for use. It is often used in the context where additional, extra, or backup items are needed. For example, a spare tire or spare parts.
Wǒ xūyào yī tái bèiyòng diànnǎo.
I need a spare computer.
This phrase is used when someone requires an additional or backup computer, often for situations where their primary device is unavailable or malfunctioning.
Qǐng zhǔnbèi yī tào bèiyòng yàoshi.
Please prepare a spare set of keys.
This request indicates the need for an extra set of keys, which can be important in case the original keys are lost or misplaced.
Tā zǒng shì dàizhe bèiyòng diànchí.
He always carries a spare battery.
This phrase describes someone who is prudent and prepared, ensuring they have an extra battery on hand for their devices.