Tree planting is almost automatically confined to exotics.树木栽植几乎主动地局限于外来种.Exotics are most useful in regions in which the native flora is deficient.在当地植物种类贫乏的地区,外来种最为有用....
A coral reef is built by the accretion of tiny, identical organisms.珊瑚礁是由许多相同的微生物不断堆积而成。the multifarious life forms in the coral reef珊瑚礁上的多种生命形式Waves mountain - high broke over the reef.滔天巨浪盖过礁石....
It vexed me to think of others gossiping behind my back.一想到别人在背后说我闲话，我就很恼火。Later Mr Moi raised the vexed question of refugees.后来莫伊先生提出了那个让人头疼的难民问题。Everything about her vexed him.有关她的一切都令他困惑。...