Mother Nature Shows Her StrengthTornadoes(龍卷風)and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening.:The s...2015-08-05
The Threat to KiribatiThe people of Kiribati are afraid that one day in the not-too-distant future,their countrywill disappear from the face of the ea...2015-08-05
alter,change作不及物動詞時,兩者可通用。作及物動詞時,alter是對局部,表面的改變,而change則是對本質的,全面的,徹底的改變。如:Can you alter the dress?(你會改做這件衣服嗎?)Can you change the dress?(你能給我更換這件衣服嗎?)...2015-08-05
You build your future. It isn't handed to you.未來靠自己努力,而非靠人施予。——《紙牌屋》Once you let the darkness inside, it never comes out.一旦你的心變黑暗了,想變回來就難了。——《綠箭俠》When...2015-08-05
如何簡單測定地形坡度用一塊硬紙板自制一個簡易的半圓量角器,在量角器半圓的圓心處用圖釘和一根小細線懸一重物,您站在山坡的一側,雙手握住量角器,使量角器的底邊與山坡保持平行一致,讀取細線經過量角器的刻度數,再從該刻度數中減去90°則為山坡的坡度。精密單點定位(Precise Point Position...2015-08-05