Acetometry
醋酸(比重)測定法
??? 情景例句
with the school-board committee.
與聯合校董會有關。
A life without a purpose is a ship without a rudder.
人生無目的，猶如船失去了舵。
One moement let me show you out, sir. Good day, sir, good day.
先生，請稍等一會我送您出去。再見，先生，再見。