"a labored style of debating"
"her voice was strained as she asked the question"
"a constrained smile" "forced heartiness" "a strained smile"
"agonistic poses"
The strained good humour, the jest with dry lips, went on and on.
She sat pale and strained, her eyes cast down, saying nothing.
The atmosphere..in Miss Fry's study was strained.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)