1、The shares are usually of two kinds: preference shares and ordinary shares.
股票通常有兩類：優(yōu)先股和普通股。

2、Welles Ltd wants to sell preference shares at $7 per share.
威爾斯有限公司希望出售優(yōu)先股每股7美元。

3、But the real question is whether the preference shares are safe.
但是真正的問題是優(yōu)先股是否安全。