扩大

expand; enlarge; extend; amplify; broaden; widen; increase; grow; escalate; magnify; augment; dilate; aggravate; swell; expansion; enlargement; amplification; dilatation; aggrandizement; expansive; extended

领先

lead; precede; head start; be in front; get ahead; set the pace; advantage; leading; in front; ahead; ahead of

优势

advantage; superiority; edge; upper hand; dominance; lead; strength; ascendancy; supremacy; benefit; positive; goodness; preponderance; dominant position; the upper hand; cutting edge; advantage preponderance; high ground; superior; advantageous; dominant; prevailing