日韩av无码午夜免费福利制服-国产欧美国日产在线视频-国产午夜精品一区二区三区不卡-亚洲精品久久黄大片

adj (1) 流體的;流動(dòng)的(capable of flowing like a liquid)：a～diet/substance 流食/流質(zhì);The waters of the lake remained～throughout the winter. 在整個(gè)冬天，湖水一直沒(méi)有結(jié)冰。As it became warmer，the substance became more～. 天氣轉(zhuǎn)暖時(shí)，這種物質(zhì)就變得更像液體了。〖同〗 liquid，watery;〖反〗solid， hard， firm;

(2) 易變的(changing readily;not fixed or stable) [通常作pred]：The situation/Our holiday plans/His opinion is (are) still～. 形勢(shì)/我們的假期計(jì)劃/他的某種觀點(diǎn)變化不定。Keep your plans～until we decide what we're going to do. 在我們決定怎么辦之前，你不要把計(jì)劃定死?！玪iving space/ideas/arrangements 不固定的生活空間/想法/安排;〖同〗 flexible，changeable，unstable，adjustable;〖反〗 fixed，settled;

(3) 動(dòng)作優(yōu)美的(changing readily;shifting;not fixed，stable，or rigid)：the～movements of a dancer 一位舞蹈演員優(yōu)美的動(dòng)作;Her movements are very～. 她的動(dòng)作非常優(yōu)美。

→ ′fluidness n 流動(dòng)性;′fluidly adv 流動(dòng)地;易變地;flu′idity n 流動(dòng)性;流動(dòng)狀態(tài);

n 流體;液(substance such as liquid or gas that flows relatively easily) [C，U]：cleaning/cooling～清洗液/冷卻液;drink lots of～s 多喝水;All liquids and gases are～s. 所有的液體和氣體都是流體;～ounce 液量盎司;〖同〗 liquid，solution;〖反〗 solid;

【辨異】 fluid 和liquid 都是指非固體。但fluid 適用于任何流動(dòng)物體，不管是流態(tài)的，還是氣態(tài)的，如：Pipes can carry fluids from place to place. (管道可以把流體從一個(gè)地方輸送到另一個(gè)地方。) 而liquid 一般是指水、油、酒精等物質(zhì)，它們既不是固體，也不是氣體，如：Water ceases to be a liquid when it is frozen or turned to steam. (當(dāng)水結(jié)冰或變成水蒸汽時(shí)，就再不是液體了。)