Photography
(Shooting wildlife, P1)
film 胶卷
digital camera数码相机
shutter快门
develop冲洗
focus对焦
background背景
magazine胶卷盒
expose曝光
underexpose曝光不足
negative底片
flash闪光
bounced light反射的光
snapshot快照

Waste
(A greener house, P6)
junk垃圾
junk dealer废旧品商人
junk mail垃圾邮件
junk market废旧品市场
junk shop旧货店
litter垃圾，乱丢垃圾
rubbish垃圾，废物
trash垃圾，废物
garbage bin/can垃圾桶
garbage dump垃圾堆
garbage truck垃圾车
recycle循环利用
recyclable可循环的

Gymnastics
(Gymnastics' history of health concerns over age of athletes, P4)
gymnast体操运动员
flexible柔韧的
agile灵活的
balance beam平衡木
trampoline蹦床
bounce up and down上下弹跳
floor exercise自由体操
pommel horse鞍马
rings吊环
vault跳马
parallel bars双杠
horizontal bar单杠
uneven bars高低杠