It's important to practise more while (learning) a foreign language.
当你学外语时,多练习非常重要.
while doing,当做某事时.while引导的句子或短语是要延续性的,用进行时态.
It's important to practise more while (learning) a foreign language.
当你学外语时,多练习非常重要.
while doing,当做某事时.while引导的句子或短语是要延续性的,用进行时态.