什么是冰川前进与冰川后退？

前进 后退用英语怎么说啊

前进 [qián jìn] 1。 to advance 2。 onward 3。 to go forward 4。 to forge ahead 相关解释: advancing, go ahead (and do), move forward, make way, progression, advance, in progress, went forward, went along, make progress, to carry on, ADV [advance], onwards, advancement, progress, go along 例句: 船只在汹涌的大海中缓慢前进...全部

  前进 [qián jìn] 1。 to advance 2。 onward 3。 to go forward 4。 to forge ahead 相关解释: advancing, go ahead (and do), move forward, make way, progression, advance, in progress, went forward, went along, make progress, to carry on, ADV [advance], onwards, advancement, progress, go along 例句: 船只在汹涌的大海中缓慢前进。
   The ship made slow progress through the rough sea。 这个拳击手向前进攻时，失去警惕，露弱弱点而遭到对方攻击。 The boxer led with the chin when he dropped his guard as he moved forward。
   我前进时, 你掩护我。 Cover me while I move forward。 后退 [hòu tuì] 1。 recoil 2。 retreat 3。 fall back 4。
   draw back 相关解释: back off, recoil from, recede, retropulsion, retrogression, recession, countermarch, regradation, fell back, back up, to retreat, retreating, back-peddling, woback, back, dead astern 例句: 他们不仅没有前进，反而后退了。
   Instead of pressing forward, then drew back。 前面肯定有险阻，你可以向前也可以后退，你将怎么办啊？ The danger is certainly a lion in the path; you can go ahead or turn back。
   Which will you do? 人群向后退开，让救护车可以开过去。 The crowd bore back so that the ambulance could pass。 。
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