20150005 【每日口說綀習】(embryo)

These are animals
like alligators and most turtles.
In these animals,
the sex of an embryo in a developing egg
is determined by the temperature.

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alligator

crocodile
crocodile tear


ps:其實alligator 與crocodile，最大的差異點就是兩者頭部的形狀不同，alligator的頭部較寬而且嘴巴較短而圓(也就是所謂的短吻鱷，通常生活於淡水中)，而crocodile則頭部較窄，嘴巴比較尖，成三角錐形(也就是所謂的鹹水鱷，通常生活於鹹水中)。
如果從側面觀看嘴型，也可以看到不同的差異，crocodile 嘴巴緊閉時，可以見到上下兩排牙齒交叉咬合，alligator嘴巴緊閉時則大部分只看到上排的牙齒。
turtles

embryo

develop
Swimming develops muscles.
The builders are developing that part of the city.
Try to develop good reading habits.

determine
She determined to go that very afternoon.
He determined to won the game.
Demands determines supply.
The court determined that the man was guilty of drunken driving.