two heads are better than one

(physics) surface tension

(psychology) cognitive dissonance

interchange which connects expressway and non-expressway road

daytime, during the day

tube (approximately cylindrical container with a crimped end)

tuning (the adjustment of a system or circuit to secure optimum performance) / tuning (the calibration of a musical instrument to a standard pitch)

tune a system or circuit / tune a musical instrument

Zhuyin fuhao; Zhuyin; bopomofo

Ho Chi Minh (Vietnamese communist revolutionary leader) / Ho Chi Minh, Ho Chi Minh City (largest city of Vietnam)