
strains
词源
源自中古英语 streinen,来自古法语 estreindre,最终源自拉丁语 stringere(意为'拉紧,束缚')。
noun
❶ 指生物体或物质中的特定品种或类型,常用于描述微生物、植物或动物的不同遗传特征。
“Scientists are studying new strains of the virus.”
(科学家正在研究病毒的新变种。)
“This strain of wheat is resistant to drought.”
(这种小麦品种能够抵抗干旱。)
❶ 指身体或心理上的压力或紧张状态,通常由于过度劳累或困难情况引起。
“The constant work put a lot of strain on his health.”
(持续的工作给他的健康带来了很大压力。)
“She felt the strain of caring for her sick mother.”
(照顾生病的母亲让她感到压力很大。)
verb
❶ 用力拉紧或伸展某物,通常接近其承受极限;也可指过度使用身体或精神能力。
“He strained his back lifting the heavy box.”
(他搬重箱子时拉伤了背部。)
“The dog strained at its leash to reach the squirrel.”
(狗使劲拉扯狗绳想去追松鼠。)
❶ 过滤液体以去除固体颗粒,通常使用筛网或滤布。
“Strain the pasta through a colander.”
(用滤锅把意大利面沥干。)
“She strained the tea leaves from the pot.”
(她把茶壶里的茶叶滤掉。)
常见短语
under strain — 处于压力之下,指人或事物承受着超出正常水平的压力或紧张状态。
“The healthcare system is under severe strain during the pandemic.”
(疫情期间医疗系统承受着巨大压力。)
strain every nerve — 竭尽全力做某事,付出最大努力来完成目标。
“The team strained every nerve to meet the deadline.”
(团队竭尽全力赶在截止日期前完成任务。)