viable cell的用法和樣例：
例句
- Every living cell and all body fluids, except bile and urine, contain protein.
每一個(gè)活細胞和所有體液中，除膽汁和尿液中含有蛋白質(zhì)。 - Measuring the concentrations of metabolic intermediates in a living cell presents great experimental difficulties.
測量一個(gè)活細胞內代謝中間產(chǎn)物的濃度的實(shí)驗面臨著(zhù)許多困難。
