口服液的英文：
liquid tonic taken orally ;oral liquid

参考例句：

The pure pollen oral liquid exclusively sold here initiates a new age for women's cosmetology.
本店独家经销纯花粉口服液，开创女士美容新时代。

We also developed grains & oatmeal for the elderly, and separate vitamin drinks for men and women.
适合银发族的活力宝典养身榖类产品、男性和女性维他命口服液等等。

liquid是什么意思：
adj. 液体的；清澈的；明亮的；不稳定的
n. 液体，流体

The liquid is then diluted.
然后液体被稀释。

A small amount of liquid;a drop.
少量液体；一滴

soil or stain with a splashed liquid.
用溅出的液体弄脏或沾污。

tonic是什么意思：
n. 奎宁水；补药，滋补品；有兴奋（或激励）作用的事物；护肤液，护发液；主音
adj. 滋补的；使精神振作的；主音的；声调的

This is the tonic note.
这是主音音符。

Tonic water(also tonic) mineral water flavoured with quinine
汤尼水(以奎宁调味的含矿物质的饮料)

Keeler sipped at his gin and tonic.
基勒小口抿着他加了奎宁水的杜松子酒。

taken是什么意思：
v. take的过去分词；拿，取

An amount of game taken or legally permitted to be taken.
取得的猎物或被法律允许的狩猎数量。

The bull must be taken by the horns.
捉牛须执角。

The Bull must be taken by the horns
捉牛须先捉牛角;勇于面对困难