Pbf
[醫][=peripheral blood flow]外周血流（量），末梢血流量
??? 情景例句
Learn to roll with the punches.
要學會應付困難。
I usually go to bed at about midnight.
我通常在大約半夜睡覺。
I like sitting by the Wayle on fine afternoons.
我喜歡在天氣晴朗的下午到河邊坐坐。