翻盖手机，直板手机，滑盖手机，智能手机，蓝牙手机这些用英文都怎么表示阿？

翻盖手机: clamshell phone or flip phone
直板手机: People usually call it "candybar"
智能手机: Smart phone
蓝牙手机: Bluetooth phone
滑盖手机: Not sure about this, I think you can call it "sliding cover phone"

clamshell cellular phone (flip cellular)

flat mobile

(compact) slider phone

smart phone

Bluetooth(-enabled) cellphone