1、According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.───根据其支持者的说法，一种新型飞机掠过大气层，可以在两小时内飞到地球上的大多数点。
2、alternative vote system, voters would be invited to rank candidates on the ballot in order of preference.───采用选择投票制，选民可在选票上根据喜好程度为候选人排序。
3、The answer may be that virtually all the water on Mars is now locked in the permafrost layer under the surface, with more contained in the planet's polar caps.───答案可能是，现在火星上几乎所有的水都被锁在地表下的永久冻土层中，更多的水被包含在这个星球的极地冰帽中。
on under in（意思翻译）
on在下in
on under in（相似词语短语）
1、diving under───潜水
2、in on under desk───在桌子下面
3、on in under───上下
4、under───prep.在……下面；在……表面下；在……的后面；（职务、级别）低于；少于；比……年轻；由……控制；根据；在……过程中；受……影响；承受着；以（某一名字）；在……项下；在 (Xi Tong)下；在……期间；在……生存条件下；栽有；在……掌权期间；在……手下工作；adj.较低的；下面的；adv.在下面；在水下；少于；较年轻；在昏迷中；
5、in on under───在下面
6、in on───参加，参与；参与，参加
7、on under───在下面
8、under attack───受到攻击；在攻击之下；[法] 受到攻击
9、in under───在下面
on under in（双语使用场景）
1、According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.───根据其支持者的说法，一种新型飞机掠过大气层，可以在两小时内飞到地球上的大多数点。
2、alternative vote system, voters would be invited to rank candidates on the ballot in order of preference.───采用选择投票制，选民可在选票上根据喜好程度为候选人排序。
3、The answer may be that virtually all the water on Mars is now locked in the permafrost layer under the surface, with more contained in the planet's polar caps.───答案可能是，现在火星上几乎所有的水都被锁在地表下的永久冻土层中，更多的水被包含在这个星球的极地冰帽中。