中英释义：
双语例句
当我学数学有困难时,他经常帮助我.
He often hel me with maths when I have difficulty in it.
重点词汇
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帮助
help; assist; aid; support; benefit; back; serve; favour; nurture; back up; leg up; help out; give a hand; lend a hand; assistance; avail; hand; boost; favor; succor; abetment; good offices; succour; for; with the help of; with the aid of; through the assistance of
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数学
mathematics; math; maths; mathematical