较小的十便士硬币于1992年首次发行。

The smaller 10 pence coin was ___introduced in 1992.

我们为员工引入了一套新的培训时间表。

We have ___introduced a new training schedule for employees.

公司对大楼进行了一系列的改进。

The company has ___introduced a number of improvements to the building.