The
中点 (·, middle dot) separates given name from surname in Chinese transliterations of Western names.
杰克 (Jack) is one of the most recognisable English names in Chinese;
贝尔 (Bell/Bauer) is the standard rendering for one-syllable B-words. The most famous
杰克·
贝尔 by far is Jack Bauer of《24
小时》(24, Fox 2001-2014), a cultural reference point for ticking-clock action drama.