If you find the quality of our products unsatisfactory， we‘re prepared to accept return of the rejected material within a week.
如果贵方对产品质量不满意，我们将在一星期内接受退货。
More than 300 watches are not up to standard.
有300多块手表不合质量标准。
Words and Phrases
bad quality 劣质
low quality 低质量
inferior quality 次质量
to be responsible for 对……负责
inaccurate 不精确的
poor quality 质量较差
to be inferior to 次于……
first-class 一等品
unsatisfactory 不满意的