without strain

基本解释

He chose the GM buses because they use an automatic transmission and diesel boosters that provide power to scale inclines without strain.
他之所以選擇美國通用汽車是因爲他們使用的是自動轉換裝置和能夠提供動力來測量沒有張力的斜坡的柴油推進器。
Lausanne is the most spectacular and vibrant city on Lake Geneva, whosesteep hills, crowned by a Gothic cathedral, can be ascended without strain inhigh-tech funiculars.
如今洛桑市已經成爲日內瓦湖邊最壯觀和充滿生機的一座城市了。其陡峭的山坡被哥特式的大教堂坐擁著，這些山坡即使不使用高空索道，也是可以到達的。
And numerous experiments have shown once the concept of self is changed, other things consistent with the new concept of self are accomplished easily and without strain.
^而且大量事實証明，自我感觀一旦改變，其他一些與新的自我感觀相一致的事情就可以輕而易擧且毫不費力地完成。

Imagine instead an iPad that you can fold in your pocket, recharge almost never and hold with one hand without wrist strain.
FORBES: Foldable iPads, Paper eBooks and Holographic Movies: The Best List of 2010
But I was THRILLED this morning when I was able to log in to my college website and read the class discussion forums on my phone without eye strain, frustration or aggravation.
FORBES: Windows Phone Strengthens Third-Place Position Against iPhone, Android
Reading on a screen without eye strain?
FORBES: Nostalgia For the End of Typewriting? No Thanks.