bottom

🇬🇧/ˈbɒtəm/ 🇺🇸/ˈbɑːtəm/📚 16710 76 4四级考研中考高考
The bottom of something is the lowest or deepest part of it. 底部

noun [具体名词]底,底部;尽头,远端;最低水平,底层位置;(套装的)下装;臀部;水底;河边洼地;(一局棒球比赛的)后半局;(汽车变速箱的)最低挡;龙骨,船体;底夸克;<古>(尤指马的)持久力,耐力;<古>船(尤指货船)

He sat at the bottom of the stairs.

adjective [原级]底部的,最后的;最不重要的,最差的;离得最远的

The marriage had reached rock bottom.

verb [vi. 不及物动词](船)到达海底,触到海底;<澳新>钻探…直到矿物层;<古>发现…范围(或本质);(成绩,局势)到达最低点后趋于平衡

The ship sank to the bottom of the sea.

bottom 出现在下面的课文中
Lesson 11 Not guilty
Lesson 32 A lost ship
Lesson 34 A happy discovery
Lesson 37 The Westhaven Express
Lesson 42 Modern cavemen
Lesson 7 Bats
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