strain是什么意思？

With surging obesity levels putting increasing strain on public health systems, governments around the world have begun to toy with the idea of taxing sugar as well.

According to two recent studies, randomly assigned roommates of different races are more likely to experience conflicts so strained that one roommate will move out.

You might strain your shoulder.

See a doctor about her strained shoulder.

Too little light makes the eyes work harder, so they do get tired and strained.

For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems.

with surging obesity levels putting increasing strain on public health systems, governments around the world have begun to toy with the idea of taxing sugar as well.

Others highlight the strain that undocumented immigrants place on public services, like schools, hospitals, and jails.

It may place a great strain on the state budget

Two strains of the disease, with almost identical symptoms, affected humans-Ebola-Zaire and Ebola-Sudan.

Both strains quickly invaded local hospitals when needle sharing and other unhealthy practices ensured the rapid spreading of the infection by bringing people into contact with contaminated body fluids

More strains will evolve from the Ebola virus.

Turning every single word into the target language would put too much strain on the interpreter and slow down the whole process too much.