Traditional: 鍵
键 (jiàn) means “key (on a piano or computer keyboard); button (on a mouse or other device); chemical bond; linchpin”. It is an HSK 5 Chinese character (traditional 鍵) in the HSK 3.0 vocabulary.
请按回车键。
Qǐng àn huíchē jiàn.
Please press the Enter key.
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