When smartphones came out on the market consumers no longer wanted features phones. The supply of feature phones suddenly became much higher than the demand.
 oversupply The supply is higher than the demand.白話的翻出即可.
老師 (讓小朋友出校車後): 別嬉戲，別跟陌生人說話。 (請填空)
Teacher (after letting kids out of the school bus on a field trip): No horsepay. Don't talk to strangers.