human feelings are as thin as water—lack of true affection(/friendship) ❍ 他长长叹息了一声，不胜感慨地摇摇头，说“～”的很，到了紧要关头，就是兄弟也不可靠……”(周而复《上海的早晨》Ⅰ—207) He sighed deeply and continued in a tone of disappointment. “Blood isn’t all that much thicker than water. As soon as a crisis crops up,even one’s own brother can’t be depended on…”