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Since the needed for fixed deposit varies from at least one week to several years, therefore, investors would need to abandon other investing tools that will have a higher rate of return

The duration of fixed deposit variable from one week to several years will compel investors to give up another investment products which may have a higher rate of return at any time .
Investors are compelled to give up another investment products which may have a higher rate of return at any time resulting from the duration of fixed deposit variable from one week to several years .

Hope this helps you.

由於定期存款雖要存款最少一星期至數年
Because fixed deposit requires the principle to be saved in the account for at least one week and up to several years;

因此，投資者需要放棄其它更高回報率的投資工具。
therefore, investors have to give up other investment tools that have higher rates of return.

Because the deposit account although wants the deposit least week to several years, Therefore, the investor needs to give up other higher repayment rate investment tool.