Smartphones nowaccount for 23 percent of all mobile phones sold in the United States, according to the research firm Nielsen.

依据调查公司Nielsen的数据，目前，智能手机占美国销售的全部手机的23%。

youdao

Smartphones nowaccount for 23 percent of all mobile phones sold in the United States, according to the research firm Nielsen.

依据调查公司Nielsen的数据，目前，智能手机占美国销售的全部手机的23%。

youdao