contractual mutual fund的用法和樣例：
例句
- Ms Tse has extensive experience in the mutual fund industry.
謝氏於互惠基金行業擁有豐富的工作經驗。 - It is generally believed that the successful launching of this new product will be conducive to the development of the unit trusts and mutual funds in Hong Kong.
一般相信，這次成功推出新產品，對香港單位信託及互惠基金的發展會有幫助。
