He made a guest appearance on the show.

　　他在這個(gè)節(jié)目里是客串出場(chǎng)。

　　He's very insecure about his appearance.

　　他對(duì)自己的長(zhǎng)相沒有信心。

　　The plant resembles grass in appearance.

　　這種植物的外形像草。