It is almost always due to some very special circumstances that traces of land animals survive,
幾乎總是由于某些特殊的條件，陸地動物的遺體才被存下來，
新概念英語第四冊
Lesson 26 The past life of the earth
?? 句中詞匯解析
從本句中提取的重要詞匯
adv. 幾乎，差不多;將近;快要;近乎;
?? al(all)+most→差不多；幾乎(=nearly)
"I like almost all of them."
我差不多所有的都喜歡。
近義：about, approximately, insufficiently, around, loosely, nearly
反義：liberally, off, outright, abundantly, plethorically, plumb
adj. 特殊的;專門的;專用的;重要的;
n. 專車;特價;特刊;特約稿;
?? speci種類+al...的→比其他種類好的→特別的
"A special subcommittee adjudicates on planning applications."
有一個特別小組委員會裁決規劃申請項目。
近義：outstanding, unusual, especial, exceptional, extraordinary, particular
vi. 幸存，活下來;
vt. 比…活得長，經歷…之后還存在;幸存;
vt.& vi. 幸免于難;挺過;艱難度過;
?? sur=super超過+vive=viv生命→超越災難，挽救生命 → 活下來，幸免于，還活著
"The time has come for action if these beautiful animals are to survive."
若要使這些美麗的動物能生存下去，現在就要行動起來。
近義：last, stand, subsist, outlive, resist
反義：part, croak, decease, depart, die, expire
n. 陸地;國家;地產;土地;
vt.& vi. （使）登岸;降臨;使陷于（困境）;使不得不應付;
vt. 自船上卸下;獲得;捕到;釣到（魚）;
vi. 跳落，跌落，被拋落（地面）;
"the issue of Aboriginal land rights"
澳大利亞土著土地權問題
近義：disembark, sod, terra, ground, area, lot
反義：leave, start, board, embark, welkin, empyrean