In fact a very low level of real hydrocarbons is found outside the injection site.

实际上在注射处外部会发现有一种标准低的碳氢化合物。

youdao

Most common side-effects are pain, swelling, itching and redness at the injection site.

最常见的副作用是注射部位的疼痛，肿胀，瘙痒和充血。

youdao

Side effects included mild and temporary muscle weakness and pain at the injection site.

注射肉毒素的副作用包括轻微短暂的肌无力和注射点疼痛。

youdao

There were some minor side effects such as pain at the injection site and low-grade fever.

CNN: FDA panel urges HPV vaccine be given to boys

Soreness at the injection site is one reason, but it usually dissipates within two days.

CNN: Flu shot myths addressed

It set up North America's first safe heroin-injection site, and pressed the provincial government to house the homeless.

ECONOMIST: A great city more troubled than it is cracked up to be