Plankton are the very small living things that float in water, especially the sea. Some are tiny plants that make food from sunlight; some are tiny animals.

Plankton指的是 are the very small living things非常微小的生物 that float in water漂浮在水裡, especially the sea尤其是海裡. Some有些 are tiny plants是微小的植物 that make food from sunlight靠陽光製造養分; some有些 are tiny animals是微小的動物.

They drift with the water. They do not swim hard from place to place the way a fish does.

They牠們 drift with the water隨著水漂流. the way a fish does像魚那樣, they牠們 do not swim hard from place to place不會用力地到處游動.

Fish, whales, and many other sea animals eat them, so the whole food chain in the ocean starts here. One creature is often too small to see with only your eyes, but in huge numbers they can change the colour of the water.

Fish, whales, and many other sea animals魚、鯨魚和許多其他海洋動物 eat them都吃牠們, so所以 the whole food chain in the ocean starts here整個海洋食物鏈就是從這裡開始的. One creature單一隻生物 is often too small to see with only your eyes通常小到只靠肉眼看不見, but但 in huge numbers數量龐大時 they can change the colour of the water牠們能讓水的顏色改變.

Though actually, the word is also used for lakes, not only the sea, and some larger drifting animals get pulled into the idea too. It is a science word, but schoolbooks use it freely.

Though actually不過其實, the word這個詞 is also used for lakes也用在湖泊, not only the sea不只是海裡, and而且 some larger drifting animals有些比較大隻的漂浮動物 get pulled into the idea too也會被算進去. It這 is a science word是一個科學用詞, but但 schoolbooks學校課本 use it freely用得很自由.