我们肩上背负的责任重在,必须小心谨慎地了解可能可能会泯灭孩子精神的原因,并要融入孩子的世界。
最好的建筑几乎是隐形的。
The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.
In times of uncertainty, clarity of purpose becomes even more critical.
The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.