4 sentences

1. 半满还是半空？

   bàn mǎn hái​shi bàn kōng?

   Half full or half empty?

   Source: OpenSubtitles

2. 看起来他好像在半空中游泳。

   kàn​qi​lai tā hǎo​xiàng zài bàn​kōng​zhōng yóu yǒng.

   He almost seems to be swimming in air.

   Source: CCMatrix

3. 想想小提琴，大提琴或半空心吉他。

   xiǎng xiang xiǎo​tí​qín, dà​tí​qín huò bàn kōng xīn jí​tā.

   Think of a violin, cello, or semi-hollow guitar.

   Source: CCMatrix

4. 如果你看到杯子是半空的，你通常被认为是悲观主义者。

   rú​guǒ nǐ kàn dào bēi​zi shì bàn kōng de, nǐ tōng​cháng bèi rèn​wéi shì bēi​guān​zhǔ​yì zhě.

   If you see the cup as half empty, you’re generally considered a pessimist.

   Source: CCMatrix