那不是气球，这点我敢肯定。It wasn't a balloon — I'm certain of that.一只气球爆裂了，听着像是枪响。A balloon popped, sounding like a gunshot.你再给气球充气，它就要爆了。That balloon will burst if you blow it up any more....
你必须搞清状况以及自己的底线。You have to know what's what and when to draw the line.马丁内兹发球的时候通常站在底线处。Martinez, when she served, usually stayed on the baseline.她说95,000英镑是她的底线。She says £95,000 is her bottom line....
The products were analyzed simultaneously using ethyl benzoate ( EB ) as internal standard.以苯甲酸乙 酯 为内标物,一次性同时分析了塔釜产物中各组分含量.The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲...