Used properly, this little yet powerful element can help users to buy a product as quickly and painless as possible.

正确地使用该图标，虽小却强大的元素，能够帮助用户尽可能又快又爽地购买商品。

youdao

They are virtually painless and can provide meaningful results, quickly and safely right in the allergist's office.

CNN: Ah-choo! 4 questions for the allergist