Intra-oral signs include raised floor of mouth due to sublingual space involvement and posterior displacement of tongue.

口内体征包括舌下间隙发病引起的口底隆起和舌后移位。

It's usually a raised floor that's somewhat above the people who are watching the play, so everyone can see it easily.

一般都是高架地板， 稍微高出看戏的人，大家很容易就能看到。

The house stood on the pavement like the other cottages, but three steps to the front door raised the ground floor of the house above street level.

房子像其他小屋一样矗立在人行道上， 但离前门只有三步之遥， 房子的底层比街道高出一截。