本集核心英语单词及例句：

1.marker (n.)标识，标记
The teacher used a marker to write on the white board.
老师用记号笔在白板上写字。

2.advanced (adj.)先进的；高等的
This advanced method has been introduced in every factory
这种先进的操作方法已在各厂推行。

3.profit (n.)利润；收益
Profit is not the only yardstick of success.
利润并不是衡量成功的唯一尺度。

4.debt (n.)债务；负债情况
Three years later, he is still paying off his debts.
都3年了，他仍在偿还债务。

5.example (n.)例子；范例
This is not a good example to set other children.
这可没有给别的孩子树立好榜样。