In the tranquility she enjoyed there was an alloy of inexpressible sadness.她享受的静谧之中掺杂着一种不可言传的悲凉。What could possibly disturb such tranquility?什么有可能会破坏这样的宁静呢？The noise ruptured the tranquility of the afternoon.吵闹声打破了下午的宁静。While it has lost its tranquility, the area has gained in liveliness.虽然该地区失去了往日的宁静，但是却有了生气。