that given a planet only approximately like our own, life is almost certain to start.
如果設想有一顆行星和我們地球的情況基本相似，那幾乎肯定會產生生命。
新概念英語第四冊
Lesson 43 Are there strangers in space
?? 句中詞匯解析
從本句中提取的重要詞匯
n. [天]行星;[占星]（左右人命運的）星相;
?? plano-, plan-, -plany, -plania 表”被動的漂流,閑逛”
"the planet Earth"
地球這顆行星
近義：planetary
adv. 近似地，大約;許;
?? ap引申+proxim接近+ate形容詞后綴+ly...地→大約，近似地；近于
"The journey took approximately seven hours."
旅程大約花了七個小時。
近義：about, appraisably, around, loosely, nearly, barely
反義：identically, just, particularly, perfectly, precisely, properly
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. 指定的，確定的;假設的，假定的;有…傾向的;贈送的;
prep. （表示原因）考慮到;（表示假設）倘若，假定;
n. 假設;
v. 給予，贈送( give的過去分詞);
"The pilot was given clearance to land by air traffic control."
飛行員得到空中交通管制站發(fā)出的著陸許可。
近義：particular
反義：indefinite, indeterminate, unascertained, uncertain, unsettled, vague
n. 生活，生計;生命，性命;一生，壽命;人生，塵世;
"My life seemed aimless."
我的生活似乎沒有目標。
近義：being, existence, liveliness, spark, sprightliness, zest
反義：passing, quietus, decease, demise, disappearance, end