? 同義詞
??? 情景例句
Since I retired,
自從我退休以后，
They have been much too irresponsible for their high position.
他們雖身居要位，未免太缺乏責任感了。
let alone distances of tens or hundreds of light years.
更不用說幾十光年或幾百光年遠的地方了。